5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-53605

CVE-2025-53605: rust-protobuf crate is vulnerable to Uncontrolled Recursion, potentially leading to DoS

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.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-53605

CVE-2025-53605:

5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
protobuf	rust	< 3.7.2	3.7.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The analysis of the security advisory and the associated commit ee1d928785cff80cbdbedde29fbf5210654410f0 clearly indicates that the vulnerability exists within the protobuf::coded_input_stream::CodedInputStream::skip_group function. The vulnerability, identified as CWE-674 (Uncontrolled Recursion), occurs because the function, prior to the patch, did not track or limit its recursion depth when parsing nested groups in a protobuf message. An attacker could exploit this by sending a message with deeply nested groups, causing the application to crash due to a stack overflow. The provided patch directly addresses this issue by refactoring the skip_group function to include recursion depth checks. The function merge_message was also refactored for consistency, but the core vulnerability described in the CVE is in skip_group's handling of unknown fields.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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Miggo AI

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WAF Protection Rules

WAF Rule

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Reasoning

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