CVE-2026-119197: pyasn1: Quadratic-complexity denial of service in binary REAL decoding

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Oct
Released
2026-10-31
EPSS Score
0.43% (percentile: 36.8%)

Affected Products (1)

Open Source Software

  • azl3 python-pyasn1 0.4.8-3 on Azure Linux 3.0

Revision History

  • 2026-10-31: Information published.