CVE-2026-6409
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 16, 2026
Vendor
unknown
Description
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.