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Back to active CVEs
Medium · CVSS 6.8CVE-2026-111274

unarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fieldsCVE-2026-111274

Answer in brief

CVE-2026-111274 records a Medium severity (CVSS 6.8) vulnerability in unarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fields. The current sources do not mark it as known exploited. The current feed maps selmf/unarr (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 15, 2026Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps selmf/unarr (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
selmf/unarrgeneric>=0 <=1.1.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for selmf/unarr.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencehackmd.io
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • unarr through 1.1.1 Off-by-One Heap Buffer Overflow via tar_get_nameSame selmf/unarr package
  • MP4v2 through 2.1.3 Heap Out-of-Bounds Read via MP4File::GetChaptersAlso CWE-125
  • libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_stringAlso CWE-125
  • libmodplug through 0.8.9.1 Heap Out-of-Bounds Read via CSoundFile::ReadAMS2Also CWE-125
  • LibRaw through 0.22.2 Heap Out-of-Bounds Read via parseNikonMakernote ShotInfoAlso CWE-125
  • libmodplug through 0.8.9.1 Heap Out-of-Bounds Write via CSoundFile::ReadDSMSame generic ecosystem

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Oct 15, 2026
References
4 linked sources
Open source record