Update dependency protobuf to v5 [SECURITY]

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This PR contains the following updates:

Package	Change	Age	Confidence
protobuf	==4.25.8 → ==5.29.6

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protobuf affected by a JSON recursion depth bypass

CVE-2026-0994 / GHSA-7gcm-g887-7qv7

More information

Details

A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages.

Due to missing recursion depth accounting inside the internal Any-handling logic, an attacker can supply deeply nested Any structures that bypass the intended recursion limit, eventually exhausting Python’s recursion stack and causing a RecursionError.

Severity

• CVSS Score: 8.2 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-0994
• https://github.com/protocolbuffers/protobuf/pull/25239
• https://github.com/protocolbuffers/protobuf/issues/25070
• https://github.com/protocolbuffers/protobuf/commit/d2b001626d137c62dfee6c88c87324102531868b
• https://github.com/protocolbuffers/protobuf/commit/5ebddcb1bcbe51d1fe323baa145e85f4f23128cf
• https://github.com/advisories/GHSA-7gcm-g887-7qv7

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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