CVE-2026-15308 Affecting libpython3_9-1_0 package, versions <3.9.25-150300.4.109.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.64% (48th percentile)

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  • Snyk IDSNYK-SLES155-LIBPYTHON3910-19853565
  • published16 Sept 2026
  • disclosed14 Sept 2026

Introduced: 14 Sep 2026

CVE-2026-15308  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 libpython3_9-1_0 to version 3.9.25-150300.4.109.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpython3_9-1_0 package and not the libpython3_9-1_0 package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.

CVSS Base Scores

version 3.1