CVE-2026-63729

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{"acknowledgement": "Red Hat would like to thank Fatih \u00c7elik for reporting this issue.", "bugzilla": {"description": "texlive: evince: TeX Live SyncTeX Parser: Heap use-after-free allows arbitrary code execution via malformed file", "id": "2503120", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503120"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.6", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the SyncTeX parser, part of TeX Live and used by applications like GNOME Evince. A remote attacker could exploit a heap use-after-free vulnerability by providing a specially crafted SyncTeX file (e.g., .synctex or .synctex.gz). This could lead to application crashes or, in severe cases, allow the attacker to execute arbitrary code on the affected system."], "name": "CVE-2026-63729", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "texlive", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "evince", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "texlive", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "evince", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "texlive", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "evince", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "texlive", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "evince", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "texlive", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-21T01:35:41Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63729\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63729\nhttps://fatihhcelik.github.io/posts/evince-synctex-heap-use-after-free/\nhttps://github.com/TeX-Live/texlive-source/\nhttps://github.com/TeX-Live/texlive-source/commit/002dcd3eac30db5c352f53d4181737961cc7ee9a\nhttps://www.vulncheck.com/advisories/tex-live-synctex-parser-heap-use-after-free-via-malformed-synctex-file"], "statement": "The SyncTeX parser shipped with TeX Live and embedded by GNOME Evince in Red Hat Enterprise Linux is affected by this vulnerability. A heap use-after-free in synctex_parser.c can be triggered by opening a specially crafted .synctex file, potentially leading to application crashes or code execution. All shipped versions of TeX Live (pre-2026) and evince are within the affected range.", "threat_severity": "Moderate"}

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