CVE-2025-59058
Medium
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.
SeverityMedium
CVSS5.9
Exploit probability—
ProductJunkurihara Httpsig-rs
PublishedSep 12, 2025
First seenSep 12, 2025
Weakness typeCWE-208CWE-208
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| junkurihara httpsig-rs | < 0.0.19 | — |
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