Debian/protobuf: unknown
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
Action: Upgrade protobuf to 3.21.12-11+deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.21.12-11+deb13u1 | - |
Fixed versions
| 3.21.12-11+deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-6409#Debian:13/protobuf
- https://security-tracker.debian.org/tracker/CVE-2026-6409
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