Protocol Buffers vulnerabilities
We track 1 vulnerability in Protocol Buffers products. 1 is rated high or critical, and none are known to be exploited. The most recent was published on April 16, 2026.
1vulnerabilities
0critical
1high
0exploited
7.1average CVSS score
Latest Protocol Buffers vulnerabilities
- 7.1 High severity
A Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing…
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 s