CVE-2026-113867

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{"bugzilla": {"description": "thunderbird: thunderbird: Unauthorized actions via XMPP stanza injection", "id": "2556399", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556399"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-91", "details": ["A flaw was found in Thunderbird. Due to improper escaping of attribute values when serializing outgoing Extensible Messaging and Presence Protocol (XMPP) messages, incoming request data is reflected in automatic responses without sanitization. A remote attacker can exploit this flaw by sending a crafted request that injects arbitrary protocol commands into the client's connection. This allows the attacker to perform unauthorized actions on behalf of the victim without interaction, such as sending messages or modifying contact and subscription settings."], "name": "CVE-2026-113867", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-20T19:14:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-113867\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-113867\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=2080073\nhttps://www.mozilla.org/security/advisories/mfsa2026-114/"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[153.5.1,153.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[158.0.1,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Thunderbird", "source": "cna", "vendor": "Mozilla"}, "product": "thunderbird", "vendor": "mozilla"}], "created": "2026-10-20T20:45:14.113103+00:00", "updated": "2026-10-29T22:15:04.258066+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$thunderbird"]}