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    CVE-2025-59058

    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.

    Published:Sep 12, 2025
    Last Modified:Apr 15, 2026
    EPS:Sep 12, 2025
    EPSS Score:0.00036
    CVSS Score:5.9

    Affected Products

    No affected product recorded yet

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-208 Observable Timing Discrepancy

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High