{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"selmf/unarr","product":"unarr","source":"CNA: VulnCheck","vendor":"selmf","versions":[{"lessThanOrEqual":"1.1.1","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-111274","cwes":["CWE-125"],"description":"unarr through 1.1.1 contains a heap-based out-of-bounds read in zip_parse_extra_fields() in zip/parse-zip.c due to an incorrect ZIP64 extra field length check. Attackers can supply a crafted ZIP archive with 0xFFFFFFFF sentinel values and a truncated ZIP64 record to read past the heap buffer and crash the process.","epss":{"date":"2026-11-01","percentile":0.09316,"score":0.00196},"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://hackmd.io/@haind-pwn/unarr-tar-zip-oob"},{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@haind-pwn/unarr-tar-zip-oob"}],"kev":null,"metrics":[{"score":6.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793586108872,"publishedAt":1792100600415,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/selmf/unarr/security/advisories/GHSA-qm4g-jf39-jwjj"},{"source":"CNA: VulnCheck","tags":["release-notes","patch"],"url":"https://github.com/selmf/unarr/releases/tag/v1.2.0"},{"source":"CNA: VulnCheck","tags":["technical-description","exploit"],"url":"https://hackmd.io/@haind-pwn/unarr-tar-zip-oob"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/unarr-through-1.1.1-heap-out-of-bounds-read-via-zip-parse-extra-fields"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@haind-pwn/unarr-tar-zip-oob"}],"remediation":[],"revision":"c8a9f32457188ecc85c20afab51f9d2fee8b4e2e1baa9fd2be6a2c00ec074b28","sources":[{"modifiedAt":1793586108872,"name":"CNA: VulnCheck","retrievedAt":1793588908096,"url":"https://www.cve.org/CVERecord?id=CVE-2026-111274"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793588951331,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111274"}],"ssvc":{"assessedAt":1792785518162,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"unarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fields","updatedAt":1793588951331}