CVE-2025-4565
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
protobuf-python has a potential Denial of Service issue
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 3.21.12-12 |
| forky | Fixed | 3.21.12-12 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-735f-pc8j-v9w8
- https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-8qvm-5x2c-j2w7
- https://nvd.nist.gov/vuln/detail/CVE-2025-4565
- https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901
- https://github.com/protocolbuffers/protobuf
- https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/decoder_test.py#L87-L98
- https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/message_test.py#L1436-L1478
- https://github.com/protocolbuffers/protobuf/tree/main/python#implementation-backends
- https://www.suse.com/security/cve/CVE-2025-4565.html
- https://security-tracker.debian.org/tracker/CVE-2025-4565
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.