CVE-2026-18503 Affecting libpython3_13-1_0 package, versions <3.13.15-150700.4.56.1


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-SLES157-LIBPYTHON31310-20360594
  • published1 Oct 2026
  • disclosed30 Sept 2026

Introduced: 30 Sep 2026

NewCVE-2026-18503  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 libpython3_13-1_0 to version 3.13.15-150700.4.56.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpython3_13-1_0 package and not the libpython3_13-1_0 package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff().

CVSS Base Scores

version 3.1