{"cve":"CVE-2015-10004","nvd":{"published":"2022-12-27T22:15:10.947","modified":"2026-06-17T00:21:18.460","status":"Modified","description":"Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-668"],"references":["https://github.com/robbert229/jwt/commit/ca1404ee6e83fcbafb66b09ed0d543850a15b654","https://github.com/robbert229/jwt/issues/12","https://pkg.go.dev/vuln/GO-2020-0023","https://github.com/robbert229/jwt/commit/ca1404ee6e83fcbafb66b09ed0d543850a15b654","https://github.com/robbert229/jwt/issues/12"],"products":["json_web_token_project:json_web_token"],"source":"nvd","synced_at":"2026-10-19T21:37:31.370122805+00:00"},"epss":{"cve":"CVE-2015-10004","score":0.00812,"percentile":0.56987,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5vw4-v588-pgv8","url":"https://osv.dev/vulnerability/GHSA-5vw4-v588-pgv8","summary":"robbert229/jwt's token validation methods vulnerable to a timing side-channel during HMAC comparison","modified":"2024-05-20T19:41:55Z","packages":[{"ecosystem":"Go","name":"github.com/robbert229/jwt","purl":"pkg:golang/github.com/robbert229/jwt","ranges":["<0.0.0-20170426191122-ca1404ee6e83"],"fixed":["0.0.0-20170426191122-ca1404ee6e83"]}]},{"id":"GO-2020-0023","url":"https://osv.dev/vulnerability/GO-2020-0023","summary":"Timing side-channel in github.com/robbert229/jwt","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"github.com/robbert229/jwt","purl":"pkg:golang/github.com/robbert229/jwt","ranges":["<0.0.0-20170426191122-ca1404ee6e83"],"fixed":["0.0.0-20170426191122-ca1404ee6e83"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}