{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-119618",
        "tracking": {
            "current_release_date": "2026-11-12T11:16:43.082459Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-119618",
            "initial_release_date": "2026-11-11T15:28:46.363268Z",
            "revision_history": [
                {
                    "date": "2026-11-11T15:28:46.363268Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-11-11T15:28:48.678788Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-11-11T15:35:23.920335Z",
                    "number": "3",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-11-11T15:39:18.075939Z",
                    "number": "4",
                    "summary": "CWES created (1).| Products created (1).| References created (1).| Description created for source.| Unknown change."
                },
                {
                    "date": "2026-11-11T15:39:25.039791Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-11-11T18:42:49.683813Z",
                    "number": "6",
                    "summary": "Source created.| CVE status created. (valid)| Products connected (1)."
                },
                {
                    "date": "2026-11-11T18:43:00.230038Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-11-11T19:31:34.384145Z",
                    "number": "8",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-11-11T19:39:16.591352Z",
                    "number": "9",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-11-12T00:27:52.264163Z",
                    "number": "10",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (4).| Product Remediations created (4).| Product Identifiers created (13).| Product Identifiers removed (13).| References created (8).| CWES updated (1)."
                },
                {
                    "date": "2026-11-12T00:27:54.277138Z",
                    "number": "11",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (13).| Product Identifiers created (12).| Products created (11).| References created (2).| CWES updated (1).| Vendor_assessment created."
                },
                {
                    "date": "2026-11-12T00:27:54.968504Z",
                    "number": "12",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-11-12T00:28:06.944956Z",
                    "number": "13",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-11-12T06:42:36.176176Z",
                    "number": "14",
                    "summary": "Description created for source."
                },
                {
                    "date": "2026-11-12T08:00:19.250473Z",
                    "number": "15",
                    "summary": "Source created.| CVE status created. (valid)"
                },
                {
                    "date": "2026-11-12T10:25:25.283409Z",
                    "number": "16",
                    "summary": "References created (5)."
                },
                {
                    "date": "2026-11-12T10:58:51.461908Z",
                    "number": "17",
                    "summary": "References created (5)."
                },
                {
                    "date": "2026-11-12T11:16:36.771050Z",
                    "number": "18",
                    "summary": "Source connected.| CVE status created. (valid)| Products connected (1).| References created (4)."
                },
                {
                    "date": "2026-11-12T11:16:38.831924Z",
                    "number": "19",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "19"
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    "vulnerabilities": [
        {
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            "cwe": {
                "id": "CWE-362",
                "name": "Concurrent Execution using Shared Resource with Improper Synchronization"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE.\n\nThis issue affects Apache HTTP Server: from 2.4.55 through 2.4.70.\nAffected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-119618"
                },
                {
                    "category": "description",
                    "text": "Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE.\n\nThis issue affects Apache HTTP Server: from 2.4.55 through 2.4.70.\nAffected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-119618"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the mod_http2 module of the Apache HTTP Server (httpd), the standard web server used across Red Hat Enterprise Linux and other products. HTTP/2 allows a client to send many requests at the same time over a single connection, and the module handles these concurrent requests using multiple threads. Due to a thread-safety flaw, one thread can modify memory that belongs to another thread, corrupting the server's internal memory. A remote attacker who can reach the web server could exploit this flaw to execute arbitrary commands on the server without any authentication, potentially leading to a complete takeover of the affected system, unauthorized access to sensitive data, and service disruption. Only servers that have HTTP/2 enabled are affected; servers configured to serve only HTTP/1.1 are not vulnerable.",
                    "title": "redhat - https://access.redhat.com/errata/RHSA-2026:98982"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the mod_http2 module of the Apache HTTP Server (httpd), the standard web server used across Red Hat Enterprise Linux and other products. HTTP/2 allows a client to send many requests at the same time over a single connection, and the module handles these concurrent requests using multiple threads. Due to a thread-safety flaw, one thread can modify memory that belongs to another thread, corrupting the server's internal memory. A remote attacker who can reach the web server could exploit this flaw to execute arbitrary commands on the server without any authentication, potentially leading to a complete takeover of the affected system, unauthorized access to sensitive data, and service disruption. Only servers that have HTTP/2 enabled are affected; servers configured to serve only HTTP/1.1 are not vulnerable.\nThe Red Hat Product Security team has assessed the severity of this vulnerability as Critical. It allows unauthenticated remote code execution, and public research has demonstrated a reliable exploit against a default-configured server with the mod_http2 module enabled. Successful exploitation allows an attacker to execute arbitrary commands, gain full control of the server process, and access or modify sensitive information.\nThe vulnerability's root cause is a thread-safety flaw in the mod_http2 module's handling of concurrent HTTP/2 requests: a worker thread writes into memory owned by the connection thread through a shared, lock-free allocator. This issue affects servers with HTTP/2 (h2 or h2c) enabled via the Protocols directive; servers serving only HTTP/1.1 are not affected.\nBecause exploitation depends on HTTP/2 stream workers sharing an allocator with the connection, the severity of this flaw varies across Red Hat products. The mod_http2 packages shipped in Red Hat Enterprise Linux 9 and Red Hat Enterprise Linux 10 allocate each HTTP/2 stream from a separate allocator, which substantially increases the complexity of exploiting the flaw. The severity for Red Hat Enterprise Linux 9 and Red Hat Enterprise Linux 10 is therefore rated Important rather than Critical. Versions of mod_http2 prior to 2.0.8 do not contain the affected code, and Red Hat Enterprise Linux 8 and earlier are not affected. Refer to the affected packages table for the severity assigned to each Red Hat product.",
                    "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-119618"
                },
                {
                    "category": "description",
                    "text": "Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE.  This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.",
                    "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-119618"
                },
                {
                    "category": "other",
                    "text": "4.5",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "The value of the most recent CVSS (V3) score, There is product data available from source Certbundde, VENDOR FIX as product remediation category",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "Is related to a product by vendor Apache",
                    "title": "NCSC Score top decreasing factors"
                },
                {
                    "category": "details",
                    "text": "Severity: 4\n",
                    "title": "Vendor assessment"
                }
            ],
            "product_status": {
                "fixed": [
                    "CSAFPID-10085169",
                    "CSAFPID-10085170",
                    "CSAFPID-10085171"
                ],
                "known_affected": [
                    "CSAFPID-10084303",
                    "CSAFPID-1389231",
                    "CSAFPID-1439319",
                    "CSAFPID-1439326",
                    "CSAFPID-5183813",
                    "CSAFPID-5183818",
                    "CSAFPID-6014972",
                    "CSAFPID-6616166",
                    "CSAFPID-9016104",
                    "CSAFPID-10085177",
                    "CSAFPID-10085178",
                    "CSAFPID-10085179",
                    "CSAFPID-10085180",
                    "CSAFPID-10085181",
                    "CSAFPID-10085182",
                    "CSAFPID-10085184",
                    "CSAFPID-10085185",
                    "CSAFPID-10085186",
                    "CSAFPID-10085187",
                    "CSAFPID-10085189",
                    "CSAFPID-10087860"
                ],
                "known_not_affected": [
                    "CSAFPID-1439315",
                    "CSAFPID-1439317",
                    "CSAFPID-1439321",
                    "CSAFPID-2970157",
                    "CSAFPID-2970158",
                    "CSAFPID-6616163"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/security/cve/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Source - debian",
                    "url": "https://security-tracker.debian.org/tracker/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/errata/RHSA-2026:98982"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0484"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4517.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde; cveprojectv5; nvd",
                    "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "http://www.openwall.com/lists/oss-security/2026/11/11/13"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://access.redhat.com/security/cve/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2567318"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://access.redhat.com/errata/RHSA-2026:98982"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://access.redhat.com/security/updates/classification/#important"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2544864"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_98982.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://access.redhat.com/security/cve/cve-2026-119618"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://bugs.gentoo.org/986161"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://github.com/AlmaLinux/updates/issues/4252"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://github.com/microsoft/azurelinux/pull/20165"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://www.wiz.io/blog/cve-2026-119618-rce-apache-http-server-vulnerability"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4517.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4517"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://github.com/googlesky/CVE-2026-119618"
                }
            ],
            "remediations": [
                {
                    "category": "vendor_fix",
                    "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
                    "product_ids": [
                        "CSAFPID-10085169",
                        "CSAFPID-10085170",
                        "CSAFPID-10085171"
                    ],
                    "restart_required": {
                        "category": "none"
                    },
                    "url": "https://access.redhat.com/errata/RHSA-2026:98982"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL"
                    },
                    "products": [
                        "CSAFPID-10084303",
                        "CSAFPID-10085177",
                        "CSAFPID-10085178",
                        "CSAFPID-10085179",
                        "CSAFPID-10085180",
                        "CSAFPID-10085181",
                        "CSAFPID-10085182",
                        "CSAFPID-10085184",
                        "CSAFPID-10085185",
                        "CSAFPID-10085186",
                        "CSAFPID-10085187",
                        "CSAFPID-10085189",
                        "CSAFPID-10087860",
                        "CSAFPID-1389231",
                        "CSAFPID-1439319",
                        "CSAFPID-1439326",
                        "CSAFPID-5183813",
                        "CSAFPID-5183818",
                        "CSAFPID-6014972",
                        "CSAFPID-6616166",
                        "CSAFPID-9016104"
                    ]
                }
            ],
            "title": "CVE-2026-119618"
        }
    ]
}