Improper Validation of Specified Quantity in Input Affecting zlib-static package, versions <1.3.2-r0


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.01% (1st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-MINIMOSLATEST-ZLIBSTATIC-15325620
  • published22 Feb 2026
  • disclosed18 Feb 2026

Introduced: 18 Feb 2026

NewCVE-2026-27171  (opens in a new tab)
CWE-1284  (opens in a new tab)

How to fix?

Upgrade Minimos:latest zlib-static to version 1.3.2-r0 or higher.

NVD Description

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

zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.

CVSS Base Scores

version 3.1