Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input

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GHSA-QJFJ-3MM5-VRJG Withdrawn Advisory: Protobuf: Denial of Service issue through malicious messages containing negative varints or deep recursion

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-p2gh-cfq4-4wjc. This link is maintained to preserve external references. Original Description A Denial of Service DoS vulnerability exists in the Protobuf PHP library during the parsing of untrusted input...

CVE-2026-6409

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...

CVE-2026-6409 Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input

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...

dev-java/snakeyaml: DoS via stack overflow

Those using Snakeyaml to parse untrusted YAML files may be vulnerable to Denial of Service attacks DOS. If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stack overflow. This effect may support a denial of service attack...