[HIGH] Protobuf: Denial of Service issue through malicious messages containing negative varints or deep recursion

PKSA-tcfz-w4fm-hhk9 CVE-2026-6409 GHSA-p2gh-cfq4-4wjc

Affected version: <4.33.6

Reported by:
GitHub

[HIGH] protobuf susceptible to buffer overflow

PKSA-yqjh-6qvh-g493 CVE-2015-5237 GHSA-jwvw-v7c5-m82h

Affected version: <3.4.0

Reported by:
GitHub