{ "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-2026-3634", "tracking": { "current_release_date": "2026-03-23T06:21:37.686795Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-3634", "initial_release_date": "2026-03-06T11:34:46.230702Z", "revision_history": [ { "date": "2026-03-06T11:34:46.230702Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-03-06T12:28:34.428088Z", "number": "2", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (10).| Product Identifiers created (5).| Product Remediations created (10).| References created (2).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-06T12:28:37.412451Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-03-09T12:43:17.222489Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Products connected (3)." }, { "date": "2026-03-09T12:43:26.618516Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-17T10:25:10.715827Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-17T10:25:18.395126Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-17T10:38:47.837836Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-17T10:38:53.048031Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-17T14:38:54.427888Z", "number": "10", "summary": "Unknown change." }, { "date": "2026-03-17T14:59:05.851026Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-17T14:59:09.288211Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-18T06:43:22.490086Z", "number": "13", "summary": "Description created for source." }, { "date": "2026-03-18T06:43:24.384883Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:28:32.378410Z", "number": "15", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:28:35.052028Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:17:29.071508Z", "number": "17", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (6).| Product Identifiers created (6).| Exploits created (1).| References created (3).| CWES updated (1)." }, { "date": "2026-03-20T18:17:31.379252Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:19:26.166883Z", "number": "19", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1).| Unknown change." }, { "date": "2026-03-21T12:19:54.683456Z", "number": "20", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| CWES updated (1)." }, { "date": "2026-03-21T12:19:58.501432Z", "number": "21", "summary": "NCSC Score updated." }, { "date": "2026-03-23T06:19:56.785452Z", "number": "22", "summary": "Products created (2).| Product Identifiers created (2)." } ], "status": "interim", "version": "22" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/10", "product": { "name": "vers:rpm/10", "product_id": "CSAFPID-2858634", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/6", "product": { "name": "vers:rpm/6", "product_id": "CSAFPID-1439321", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/7", "product": { "name": "vers:rpm/7", "product_id": "CSAFPID-1439315", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:7" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439317", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/9", "product": { "name": "vers:rpm/9", "product_id": "CSAFPID-1439319", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_linux:9" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0", "product": { "name": "vers:unknown/10.0", "product_id": "CSAFPID-2941214", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/6.0", "product": { "name": "vers:unknown/6.0", "product_id": "CSAFPID-1992585", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:6.4:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/7.0", "product": { "name": "vers:unknown/7.0", "product_id": "CSAFPID-1992579", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:6.4:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/8.0", "product": { "name": "vers:unknown/8.0", "product_id": "CSAFPID-1994226", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.0", "product": { "name": "vers:unknown/9.0", "product_id": "CSAFPID-2001071", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:-:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "enterprise_linux" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2618547" } } ], "category": "product_name", "name": "libsoup" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2618548" } } ], "category": "product_name", "name": "libsoup" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2618549" } } ], "category": "product_name", "name": "libsoup" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2618550" } } ], "category": "product_name", "name": "libsoup" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2965651" } } ], "category": "product_name", "name": "libsoup3" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5890854", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:azl3_libsoup_3.4.4-12:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "azl3 libsoup 3.4.4-12 on Azure Linux 3.0" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5890853", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:cbl2_libsoup_3.0.4-12:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "cbl2 libsoup 3.0.4-12 on CBL Mariner 2.0" } ], "category": "product_family", "name": "Open Source Software" } ], "category": "vendor", "name": "Microsoft" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-5873934", "product_identification_helper": { "cpe": "cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "libsoup" } ], "category": "vendor", "name": "Gnome" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-2617521" } } ], "category": "product_name", "name": "libsoup2.4" }, { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-2563067" } } ], "category": "product_name", "name": "libsoup3" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-2617522" } } ], "category": "product_name", "name": "libsoup2.4" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-3634", "cwe": { "id": "CWE-93", "name": "Improper Neutralization of CRLF Sequences ('CRLF Injection')" }, "notes": [ { "category": "description", "text": "No description is available for this CVE.\nThis MODERATE impact flaw in libsoup allows an attacker to perform HTTP header injection and response splitting. By controlling the `Content-Type` header value, an attacker can inject arbitrary header-value pairs due to improper input sanitization in the `soup_message_headers_set_content_type()` function.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-3634" }, { "category": "description", "text": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-3634" }, { "category": "description", "text": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-3634" }, { "category": "description", "text": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-3634" }, { "category": "description", "text": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3634" }, { "category": "description", "text": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3634.json" }, { "category": "description", "text": "Libsoup: libsoup: http header injection and response splitting via crlf injection in content-type header", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "other", "text": "0.0003", "title": "EPSS" }, { "category": "other", "text": "4.2", "title": "NCSC Score" }, { "category": "other", "text": "Is related to an uncommon cwe id", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, The value of the most recent EPSS score, Is related to (a version of) an uncommon product, There is exploit data available from source Nvd", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-2618547", "CSAFPID-2618548", "CSAFPID-2618549", "CSAFPID-2618550", "CSAFPID-2858634", "CSAFPID-2965651", "CSAFPID-2563067", "CSAFPID-2617521", "CSAFPID-2617522", "CSAFPID-1992579", "CSAFPID-1992585", "CSAFPID-1994226", "CSAFPID-2001071", "CSAFPID-2941214", "CSAFPID-5873934", "CSAFPID-5890853", "CSAFPID-5890854" ] }, "references": [ { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-3634" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-3634.json" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-3634" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3634" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3634" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-3634" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3634.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-3634" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3634" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3634.json" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-3634" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3634" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://access.redhat.com/security/cve/CVE-2026-3634" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445129" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/485" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "product_ids": [ "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-2618547", "CSAFPID-2618548", "CSAFPID-2618549", "CSAFPID-2618550", "CSAFPID-2858634", "CSAFPID-2965651" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L", "baseScore": 3.9, "baseSeverity": "LOW" }, "products": [ "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-1992579", "CSAFPID-1992585", "CSAFPID-1994226", "CSAFPID-2001071", "CSAFPID-2563067", "CSAFPID-2617521", "CSAFPID-2617522", "CSAFPID-2618547", "CSAFPID-2618548", "CSAFPID-2618549", "CSAFPID-2618550", "CSAFPID-2858634", "CSAFPID-2941214", "CSAFPID-2965651", "CSAFPID-5873934", "CSAFPID-5890853", "CSAFPID-5890854" ] } ], "title": "CVE-2026-3634" } ] }