CVE-2025-53605
Google Protobuf Rust Crate Uncontrolled Recursion Vulnerability
Description
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.
INFO
Published Date :
July 5, 2025, 1:15 a.m.
Last Modified :
June 17, 2026, 9:38 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the protobuf crate to the latest version.
- Review recursion handling in input parsing.
Public PoC/Exploit Available at Github
CVE-2025-53605 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-53605.
| URL | Resource |
|---|---|
| https://crates.io/crates/protobuf | |
| https://github.com/stepancheg/rust-protobuf/issues/749 | |
| https://rustsec.org/advisories/RUSTSEC-2024-0437 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-53605 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-53605
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Cross-language protobuf fuzz harness generator with CVE-pattern detection. Scans .proto files for known vulnerability patterns and generates fuzz targets for Python, C++ (libFuzzer), and Go.
code-generation cve-detection fuzzing protobuf security static-analysis
Python Rust
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-53605 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-53605 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'stepancheg', 'product': 'protobuf', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.7.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-53605', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-07-08T13:10:30.648808Z'} -
New CVE Received by [email protected]
Jul. 05, 2025
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-674 Added Reference https://crates.io/crates/protobuf Added Reference https://github.com/stepancheg/rust-protobuf/issues/749 Added Reference https://rustsec.org/advisories/RUSTSEC-2024-0437