CVE-2026-0864 Affecting python-3.11 package, versions <3.11.15-r8


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PYTHON311-17973165
  • published15 Jul 2026
  • disclosed23 Jun 2026

Introduced: 23 Jun 2026

CVE-2026-0864  (opens in a new tab)

How to fix?

Upgrade Chainguard python-3.11 to version 3.11.15-r8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-3.11 package and not the python-3.11 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

CVSS Base Scores

version 3.1