CVE-2025-59058

MEDIUM EPSS 17.7%
Published Sep 12, 20259mo ago · Modified Jun 17, 20262w ago
5.9 CVSS 3.1
Medium
Find Similar
Published Sep 12, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

httpsig-rs is a Rust implementation of IETF RFC 9421 http message signatures. Prior to version 0.0.19, the HMAC signature comparison is not timing-safe. This makes anyone who uses HS256 signature verification vulnerable to a timing attack that allows the attacker to forge a signature. Version 0.0.19 fixes the issue.

CVSS Details

Base Score
5.9
Exploitability
2.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
17.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-208

References 2

  • github.com https://github.com/junkurihara/httpsig-rs/commit/fc095b6ce6043bb808f5d9c4379cf697899cb458
  • github.com https://github.com/junkurihara/httpsig-rs/security/advisories/GHSA-q7pg-9pr4-mrp2

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.