protobuf vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-0994Highprotobuf: protobuf affected by a JSON recursion depth bypass CVE-2025-4565Highprotobuf: protobuf-python has a potential Denial of Service issue CVE-2025-53605Mediumprotobuf: Crash due to uncontrolled recursion in protobuf crate CVE-2022-1941Highprotobuf: protobuf-cpp and protobuf-python have potential Denial of Service issue CVE-2015-5237HighGoogle.Protobuf: protobuf susceptible to buffer overflow CVE-2019-15544Highprotobuf: Uncontrolled memory consumption in protobuf

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