CVE-2026-111274
CVE-2026-111274 · unarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fields
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.8 · Medium · EPSS 0.2%
- Published
- Updated
Stack: system
Affected products and versions
unarr
- Versions
- ≥ 0, ≤ 1.1.1: Affected (semver)
No fix published
unarr Debian:12
- Versions
- 1.0.1-1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
unarr Ubuntu:20.04:LTS
- Versions
- 1.0.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
unarr Ubuntu:22.04:LTS
- Versions
- 1.0.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
unarr Ubuntu:24.04:LTS
- Versions
- 1.0.1-1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://hackmd.io/@haind-pwn/unarr-tar-zip-oob
- https://github.com/selmf/unarr/blob/b211040df83dee513362cdeb9bd87afa26fd5e38/zip/parse-zip.c#L48-L72
- https://github.com/selmf/unarr
- https://www.vulncheck.com/advisories/unarr-through-1.1.1-heap-out-of-bounds-read-via-zip-parse-extra-fields
- https://nvd.nist.gov/vuln/detail/CVE-2026-111274