Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV L L N N P N L H 6.9 .0014 3.2 —
AFFECTED Product Versions Fixed unarr unspecified —
TIMELINE Oct 15 Reserved by VulnCheck Oct 15 Published (CNA: VulnCheck) Oct 16 EXPLOIT PUBLISHED — CVE-2026-111273 (selmf unarr). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| October 15, 2026 | Reserved | Reserved by VulnCheck |
| October 15, 2026 | Published | Published (CNA: VulnCheck) |
| October 16, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-111273 (selmf unarr). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| selmf | unarr | — | — | — |
Authoritative record: CVE-2026-111273 at cve.org
Vendors: selmf
Weaknesses: CWE-193
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-111273 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
