Out-of-bounds Read Affecting python-3.12 package, versions <3.12.12-r4


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.59% (74th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PYTHON312-14868994
  • published6 Jan 2026
  • disclosed1 Dec 2025

Introduced: 1 Dec 2025

CVE-2025-13836  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Chainguard python-3.12 to version 3.12.12-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-3.12 package and not the python-3.12 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS.

CVSS Base Scores

version 3.1