CVE-2026-43861

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{"bugzilla": {"description": "mutt: Mutt: URL processing vulnerability due to improper null character handling", "id": "2464868", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464868"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-170", "details": ["A flaw was found in mutt, an email client. The `url_pct_decode` function, which is responsible for decoding URL-encoded strings, does not correctly handle null termination characters. This vulnerability could allow a remote attacker, to manipulate how URLs are processed, potentially leading to a limited loss of data integrity."], "name": "CVE-2026-43861", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "mutt", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "mutt", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "mutt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "mutt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "mutt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-04T05:52:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43861\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43861\nhttps://github.com/muttmua/mutt/commit/12f54fe3b61f761c096fe95e95d5e3072af00ed2"], "threat_severity": "Low"}

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