Severity
7.1
High severity
Details
- CVSS score
- 7.1
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Overview
About vulnerability
A Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input. Maliciously structured messages—specifically those containing negative varints or deep recursion—can be used to crash the application, impacting service availability.
NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6409 NVD lastModified: 2026-04-17
Details
- Affected product:
- google/protobuf
- Affected packages:
- google/protobuf @ 3.24.4
A Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input. Maliciously structured messages—specifically those containing negative varints or deep recursion—can be used to crash the application, impacting service availability.
NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6409 NVD lastModified: 2026-04-17