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Protocol Buffers Protobuf-Php vulnerabilities

1 known vulnerability affecting protocol_buffers/protobuf-php.

Total CVEs

1

CISA KEV

0

Public exploits

0

Exploited in wild

0

Severity breakdown

HIGH1

Vulnerabilities

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CVE-2026-6409P4HIGHCVSS 7.1fixed in 5.34.0-RC1fixed in 4.33.62026-04-16

CVE-2026-6409 [HIGH] CWE-20 CVE-2026-6409: A Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of unt 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.

Protocol Buffers Protobuf-Php vulnerabilities | cvebase