CVE-2026-30922: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion

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/E:P

Exploit Status

Not Exploited

Patch Tuesday

2026-Mar

Released

2026-03-21

EPSS Score

0.04% (percentile: 11.8%)

Affected Products (2)

Other

• 20840-17084
• 20841-17086

Revision History

• 2026-03-21: Information published.