CVE-2026-118179

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{"bugzilla": {"description": "thunderbird: thunderbird: Arbitrary command injection to internal network services via crafted news links", "id": "2562326", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562326"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-93", "details": ["Clicking a news: or snews: link that referenced a message-ID made Thunderbird connect, without asking, to the host and port given in the link, even if it was not a configured news server. Line breaks in the message-ID were sent to the server unmodified, so a crafted link could send arbitrary commands to services reachable from the user's network. In addition, snews: links to such servers connected without TLS. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.", "A flaw was found in Thunderbird. When handling news: or snews: links referencing a message identifier, Thunderbird automatically connects to the host and port specified in the link without user confirmation and transmits line breaks without sanitization. A remote attacker could entice a user into clicking a crafted link, enabling arbitrary commands to be sent to network services reachable from the victim's network. In addition, snews: links connect without Transport Layer Security (TLS), transmitting traffic in plaintext."], "name": "CVE-2026-118179", "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": "2026-10-27T18:16:32Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-118179\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-118179\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=2077789\nhttps://www.mozilla.org/security/advisories/mfsa2026-121/\nhttps://www.mozilla.org/security/advisories/mfsa2026-122/"], "threat_severity": "Moderate"}

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