Loop with Unreachable Exit Condition ('Infinite Loop') Affecting zlib package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-CENTOS8-ZLIB-15631143
  • published15 Mar 2026
  • disclosed18 Feb 2026

Introduced: 18 Feb 2026

NewCVE-2026-27171  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 zlib.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Centos. See How to fix? for Centos:8 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