CVE-2026-56858 Affecting libslirp-debugsource package, versions <0:4.4.0-2.module+el8.10.0+1825+623b0c20


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-ROCKY8-LIBSLIRPDEBUGSOURCE-19538974
  • published5 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-56858  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 libslirp-debugsource to version 0:4.4.0-2.module+el8.10.0+1825+623b0c20 or higher.
This issue was patched in RLSA-2026:63163.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libslirp-debugsource package and not the libslirp-debugsource package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.

CVSS Base Scores

version 3.1