Out-of-bounds Read Affecting unarr package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-UNARR-21173230
  • published17 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-111274  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest unarr.

NVD Description

Note: Versions mentioned in the description apply only to the upstream unarr package and not the unarr package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1