CVE-2026-0672 Affecting python3.12 package, versions <3.12.3-1ubuntu0.11


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU2404-PYTHON312-15051370
  • published6 Feb 2026
  • disclosed20 Jan 2026

Introduced: 20 Jan 2026

CVE-2026-0672  (opens in a new tab)

How to fix?

Upgrade Ubuntu:24.04 python3.12 to version 3.12.3-1ubuntu0.11 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.12 package and not the python3.12 package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.

CVSS Base Scores

version 3.1