CVE-2026-18503 Affecting python3-curses package, versions <3.6.15-150300.10.129.1


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-SLES155-PYTHON3CURSES-21349616
  • published21 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

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

How to fix?

Upgrade SLES:15.5 python3-curses to version 3.6.15-150300.10.129.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-curses package and not the python3-curses package as distributed by SLES. See How to fix? for SLES:15.5 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