CVE-2026-6409: Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input
Overview
- Severity
- N/A
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Apr
- Released
- 2026-04-23
- Last Updated
- 2026-04-30
- EPSS Score
- 0.36% (percentile: 29.1%)
Affected Products (4)
Open Source Software
- azl3 mysql 8.0.45-2 on Azure Linux 3.0
- cbl2 protobuf 3.17.3-5 on CBL Mariner 2.0
- azl3 pytorch 2.2.2-12 on Azure Linux 3.0
- azl3 protobuf 25.3-6 on Azure Linux 3.0
Revision History
- 2026-04-23: Information published.
- 2026-04-24: Information published.
- 2026-04-29: Information published.
- 2026-04-30: Information published.