CVE-2026-7790: Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-15

Last Updated

2026-06-03

EPSS Score

0.43% (percentile: 34.5%)

Affected Products (2)

Open Source Software

• azl3 rabbitmq-server 3.13.7-3 on Azure Linux 3.0

Other

• 21394-17084

Revision History

• 2026-05-15: Information published.
• 2026-05-26: Information published.
• 2026-06-03: Information published.