{ "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-2026-100699", "tracking": { "current_release_date": "2026-09-30T19:48:24.633307Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-100699", "initial_release_date": "2026-09-26T14:29:34.737649Z", "revision_history": [ { "date": "2026-09-26T14:29:34.737649Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-09-26T14:29:37.845424Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-09-26T15:35:22.494509Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-09-27T00:27:53.751908Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (10).| Product Identifiers created (4).| References created (4).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-09-27T00:28:06.228188Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-09-27T00:44:50.382338Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Products connected (1)." }, { "date": "2026-09-27T00:44:57.978303Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-09-27T06:25:51.069159Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (4).| Products connected (7).| References created (4).| CWES updated (1)." }, { "date": "2026-09-27T06:25:57.081643Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-09-27T06:44:43.424989Z", "number": "10", "summary": "Description created for source." }, { "date": "2026-09-27T15:14:51.546264Z", "number": "11", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-27T15:16:28.224354Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-09-28T12:44:06.403685Z", "number": "13", "summary": "CVSS created.| CWES created (1).| Products created (3).| References created (2).| Description created for source.| Unknown change.| Product Identifiers created (1)." }, { "date": "2026-09-28T12:44:09.007794Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-09-28T18:38:49.628281Z", "number": "15", "summary": "Unknown change." }, { "date": "2026-09-29T16:13:00.334478Z", "number": "16", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:13:08.979925Z", "number": "17", "summary": "NCSC Score updated." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/10.0.9", "product": { "name": "vers:semver/10.0.9", "product_id": "CSAFPID-9479074" } }, { "category": "product_version_range", "name": "vers:semver/9.1.0|<10.0.9", "product": { "name": "vers:semver/9.1.0|<10.0.9", "product_id": "CSAFPID-9479075" } }, { "category": "product_version_range", "name": "vers:unknown/>=9.1.0|<=10.0.9", "product": { "name": "vers:unknown/>=9.1.0|<=10.0.9", "product_id": "CSAFPID-9479076", "product_identification_helper": { "cpe": "cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.0", "product": { "name": "vers:unknown/v10.0.0", "product_id": "CSAFPID-9316229" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.1", "product": { "name": "vers:unknown/v10.0.1", "product_id": "CSAFPID-9316228" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.2", "product": { "name": "vers:unknown/v10.0.2", "product_id": "CSAFPID-9316227" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.3", "product": { "name": "vers:unknown/v10.0.3", "product_id": "CSAFPID-9316226" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.4", "product": { "name": "vers:unknown/v10.0.4", "product_id": "CSAFPID-9316225" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.5", "product": { "name": "vers:unknown/v10.0.5", "product_id": "CSAFPID-9473861" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.6", "product": { "name": "vers:unknown/v10.0.6", "product_id": "CSAFPID-9473860" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.7", "product": { "name": "vers:unknown/v10.0.7", "product_id": "CSAFPID-9473859" } }, { "category": "product_version_range", "name": "vers:unknown/v10.0.8", "product": { "name": "vers:unknown/v10.0.8", "product_id": "CSAFPID-9473858" } }, { "category": "product_version_range", "name": "vers:unknown/v9.1.0", "product": { "name": "vers:unknown/v9.1.0", "product_id": "CSAFPID-9316231" } }, { "category": "product_version_range", "name": "vers:unknown/v9.1.1", "product": { "name": "vers:unknown/v9.1.1", "product_id": "CSAFPID-9316230" } } ], "category": "product_name", "name": "Nodemailer" } ], "category": "vendor", "name": "Nodemailer" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-1508265", "product_identification_helper": { "cpe": "cpe:/a:redhat:rhdh:1" } } } ], "category": "product_name", "name": "Red Hat Developer Hub" }, { "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/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-6014972", "product_identification_helper": { "cpe": "cpe:/a:redhat:hummingbird:1" } } } ], "category": "product_name", "name": "Red Hat Hardened Images" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/2", "product": { "name": "vers:rpm/2", "product_id": "CSAFPID-5486263", "product_identification_helper": { "cpe": "cpe:/a:redhat:ansible_portal:2" } } } ], "category": "product_name", "name": "Self-service automation portal 2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8334394" } } ], "category": "product_name", "name": "bootc-automation-portal-rhel9" } ], "category": "product_family", "name": "Self-service automation portal 2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2868420" } } ], "category": "product_name", "name": "grafana" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8902830" } } ], "category": "product_name", "name": "grafana12.4" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8902831" } } ], "category": "product_name", "name": "grafana13.1" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-9053231" } } ], "category": "product_name", "name": "grafana13.2" } ], "category": "product_family", "name": "Red Hat Hardened Images" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1508266" } } ], "category": "product_name", "name": "rhdh-hub-rhel9" } ], "category": "product_family", "name": "Red Hat Developer Hub" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-5188783" } } ], "category": "product_name", "name": "node-nodemailer" } ], "category": "product_family", "name": "bookworm" } ], "category": "vendor", "name": "Debian" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-100699", "cwe": { "id": "CWE-1286", "name": "Improper Validation of Syntactic Correctness of Input" }, "notes": [ { "category": "description", "text": "Nodemailer is a Node.js email-sending library. In versions >= 9.1.0 and < 10.0.9, the address parser (src/addressparser) mishandles addresses whose local-part is a quoted string and that are followed by RFC 5322 comments, allowing trailing comment-separated domain atoms to be retained in the normalized address. For example, the input \"user\"@example.com(x)evil.com is parsed to the address value 'user@example.com evil.com', which contains additional attacker-controlled domain text separated by a literal space. This parsed value is used without further strict recipient validation when the message envelope is built (envelope.to in src/mime-node), so a malformed/ambiguous recipient address can be accepted and placed in the SMTP envelope. Whether this results in delivery to an unintended recipient on real SMTP servers has not been confirmed. The issue is a variant of the RFC 5322 comment parsing problem addressed in GHSA-cc9r-2j5m-2m83, affecting the separate quoted-local-part code path. Version 10.0.9 contains a fix.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-100699" }, { "category": "description", "text": "Nodemailer is a Node.js email-sending library. In versions >= 9.1.0 and < 10.0.9, the address parser (src/addressparser) mishandles addresses whose local-part is a quoted string and that are followed by RFC 5322 comments, allowing trailing comment-separated domain atoms to be retained in the normalized address. For example, the input \"user\"@example.com(x)evil.com is parsed to the address value 'user@example.com evil.com', which contains additional attacker-controlled domain text separated by a literal space. This parsed value is used without further strict recipient validation when the message envelope is built (envelope.to in src/mime-node), so a malformed/ambiguous recipient address can be accepted and placed in the SMTP envelope. Whether this results in delivery to an unintended recipient on real SMTP servers has not been confirmed. The issue is a variant of the RFC 5322 comment parsing problem addressed in GHSA-cc9r-2j5m-2m83, affecting the separate quoted-local-part code path. Version 10.0.9 contains a fix.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-100699" }, { "category": "description", "text": "A flaw was found in nodemailer. The address parser incorrectly processes email addresses containing quoted local parts followed by comments, allowing trailing domain text to be retained in the normalized address. A remote attacker could supply a crafted recipient address to inject malformed domain data into the Simple Mail Transfer Protocol (SMTP) message envelope, potentially leading to unintended email routing or delivery.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-100699" }, { "category": "description", "text": "Nodemailer is a Node.js email-sending library. In versions >= 9.1.0 and < 10.0.9, the address parser (src/addressparser) mishandles addresses whose local-part is a quoted string and that are followed by RFC 5322 comments, allowing trailing comment-separated domain atoms to be retained in the normalized address. For example, the input \"user\"@example.com(x)evil.com is parsed to the address value 'user@example.com evil.com', which contains additional attacker-controlled domain text separated by a literal space. This parsed value is used without further strict recipient validation when the message envelope is built (envelope.to in src/mime-node), so a malformed/ambiguous recipient address can be accepted and placed in the SMTP envelope. Whether this results in delivery to an unintended recipient on real SMTP servers has not been confirmed. The issue is a variant of the RFC 5322 comment parsing problem addressed in GHSA-cc9r-2j5m-2m83, affecting the separate quoted-local-part code path. Version 10.0.9 contains a fix.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-100699.json?alt=media" }, { "category": "description", "text": "Nodemailer is a Node.js email-sending library. In versions >= 9.1.0 and < 10.0.9, the address parser (src/addressparser) mishandles addresses whose local-part is a quoted string and that are followed by RFC 5322 comments, allowing trailing comment-separated domain atoms to be retained in the normalized address. For example, the input \"user\"@example.com(x)evil.com is parsed to the address value 'user@example.com evil.com', which contains additional attacker-controlled domain text separated by a literal space. This parsed value is used without further strict recipient validation when the message envelope is built (envelope.to in src/mime-node), so a malformed/ambiguous recipient address can be accepted and placed in the SMTP envelope. Whether this results in delivery to an unintended recipient on real SMTP servers has not been confirmed. The issue is a variant of the RFC 5322 comment parsing problem addressed in GHSA-cc9r-2j5m-2m83, affecting the separate quoted-local-part code path. Version 10.0.9 contains a fix.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-100699" }, { "category": "other", "text": "0.00193", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "6.9", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.1", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent EPSS score, There is cwe data available from source Nvd, Is related to (a version of) an uncommon product, The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-2858634", "CSAFPID-2868420", "CSAFPID-5486263", "CSAFPID-8334394", "CSAFPID-5188783", "CSAFPID-9316225", "CSAFPID-9316226", "CSAFPID-9316227", "CSAFPID-9316228", "CSAFPID-9316229", "CSAFPID-9316230", "CSAFPID-9316231", "CSAFPID-9473858", "CSAFPID-9473859", "CSAFPID-9473860", "CSAFPID-9473861", "CSAFPID-9479075", "CSAFPID-9479076" ], "known_not_affected": [ "CSAFPID-6014972", "CSAFPID-8902830", "CSAFPID-8902831", "CSAFPID-9053231", "CSAFPID-9479074" ] }, "references": [ { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-100699" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-100699.json?alt=media" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-100699" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-100699" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100699" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-100699" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/nodemailer/nodemailer/security/advisories/GHSA-g57g-f23g-4646" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://www.vulncheck.com/advisories/nodemailer-before-10.0.9-malformed-envelope-recipient-via-rfc-5322-comment" }, { "category": "external", "summary": "Reference - osv; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100699" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-100699" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100699.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-2858634", "CSAFPID-2868420", "CSAFPID-5188783", "CSAFPID-5486263", "CSAFPID-8334394", "CSAFPID-9316225", "CSAFPID-9316226", "CSAFPID-9316227", "CSAFPID-9316228", "CSAFPID-9316229", "CSAFPID-9316230", "CSAFPID-9316231", "CSAFPID-9473858", "CSAFPID-9473859", "CSAFPID-9473860", "CSAFPID-9473861", "CSAFPID-9479075", "CSAFPID-9479076" ] } ], "title": "CVE-2026-100699" } ] }