httpsig-rs’s HMAC verification is vulnerable to timing attack_CVE-2025-59058

5.9 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Basic Information

ID CVE-2025-59058

Source GitHub_M

Published Sep 12, 2025 at 13:10

Modified Sep 12, 2025 at 13:45

Affected Product

Vendor junkurihara

Product httpsig-rs

Version < 0.0.19

Affected Versions junkurihara httpsig-rs < 0.0.19

CWE Classification

CWE-208

References

{
    "lastseen": "",
    "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.",
    "published": "2025-09-12T13:10:11.349Z",
    "modified": "2025-09-12T13:45:48.203Z",
    "type": "cve",
    "title": "httpsig-rs's HMAC verification is vulnerable to timing attack",
    "source": "GitHub_M",
    "references": "https://github.com/junkurihara/httpsig-rs/security/advisories/GHSA-q7pg-9pr4-mrp2\nhttps://github.com/junkurihara/httpsig-rs/commit/fc095b6ce6043bb808f5d9c4379cf697899cb458",
    "id": "CVE-2025-59058",
    "bulletinFamily": "",
    "cwe": [
        "CWE-208"
    ],
    "cvelist": null,
    "sourceData": "junkurihara httpsig-rs < 0.0.19",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "httpsig-rs",
    "version": "< 0.0.19",
    "vendor": "junkurihara",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}