CVE-2026-111273
6.1 MEDIUMpublic exploit availablePublished 2026-10-15 · Updated 2026-10-16
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable through the ar_entry_get_name() API. Attackers can supply a crafted TAR archive with a full ustar prefix and name to write a NUL byte past the allocation, corrupting heap memory and crashing the process.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Weaknesses
CWE-193
Public exploit & PoC references
All references
- https://github.com/selmf/unarr
- https://github.com/selmf/unarr/blob/b211040df83dee513362cdeb9bd87afa26fd5e38/tar/parse-tar.c#L242-L254
- https://hackmd.io/@haind-pwn/unarr-tar-zip-oob
- https://www.vulncheck.com/advisories/unarr-through-1.1.1-off-by-one-heap-buffer-overflow-via-tar-get-name
- https://hackmd.io/@haind-pwn/cve-2026-111273-111274-unarr-tar-zip-oob
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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