CVE-2026-3446 Affecting python311 package, versions <3.11.15-150400.9.88.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-SLES154-PYTHON311-17807868
  • published3 Jul 2026
  • disclosed1 Jul 2026

Introduced: 1 Jul 2026

CVE-2026-3446  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 python311 to version 3.11.15-150400.9.88.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311 package and not the python311 package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

When calling base64.b64decode() or related functions the decoding process would stop after encountering the first padded quad regardless of whether there was more information to be processed. This can lead to data being accepted which may be processed differently by other implementations. Use "validate=True" to enable stricter processing of base64 data.

CVSS Base Scores

version 3.1