CVE catalog

CVE-2025-53605

rust-protobuf: CVE-2025-53605

Severity: Medium · CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Jul 5, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.47% · Oct 25, 2026

The protobuf crate before 3.7.2 for Rust allows uncontrolled recursion in the protobuf::coded_input_stream::CodedInputStream::skip_group parsing of unknown fields in untrusted input.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	rust-protobuf	sid	`3.7.2-1`	fixed
Debian	rust-protobuf	forky	`3.7.2-1`	fixed
Debian	rust-protobuf	bookworm	`2.27.1-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	rust-protobuf	source	sid	`3.7.2-1`	not yet assigned	Not reported	[1103833]
Debian	rust-protobuf	source	forky	`3.7.2-1`	not yet assigned	Not reported	[1103833]
Debian	rust-protobuf	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1103833]

[Debian bug #1103833]

Notes

[bookworm] rust-protobuf: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[librust-protobuf+bytes-dev]Affected
Source package: [rust-protobuf]
Details (2)
- 2.27.1-1 · amd64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
- 2.27.1-1 · arm64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
[librust-protobuf-dev]Affected
Source package: [rust-protobuf]
Details (2)
- 2.27.1-1 · amd64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
- 2.27.1-1 · arm64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
[librust-protobuf+serde-derive-dev]Affected
Source package: [rust-protobuf]
Details (2)
- 2.27.1-1 · amd64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
- 2.27.1-1 · arm64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
[librust-protobuf+serde-dev]Affected
Source package: [rust-protobuf]
Details (2)
- 2.27.1-1 · amd64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
- 2.27.1-1 · arm64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
[librust-protobuf+with-serde-dev]Affected
Source package: [rust-protobuf]
Details (2)
- 2.27.1-1 · amd64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12
- 2.27.1-1 · arm64 · bookworm
  Affected
  dsa · rust-protobuf · debian · bookworm; dsa · rust-protobuf · debian · 12

Observed: Oct 24, 2026, 9:16:51 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]