Medium
unarr through 1.1.1 Off-by-One Heap Buffer Overflow via tar_get_name
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.
Announced Group revision 1
Original source ↗CVE-2026-111273
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111273
unarr
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/selmf/unarr",
"vendor": "selmf",
"product": "unarr",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.1.1"
}
],
"packageURL": "pkg:github/selmf/unarr",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111273
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #34380 · Revision 1
- Added to Heist Feed
- Publisher date