Improper Encoding or Escaping of Output Affecting python3-base package, versions <3.6.15-150300.10.118.1


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-SLES156-PYTHON3BASE-16479206
  • published7 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

NewCVE-2026-6019  (opens in a new tab)
CWE-116  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 python3-base to version 3.6.15-150300.10.118.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-base package and not the python3-base package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.

CVSS Base Scores

version 3.1