{"id":"CVE-2015-10004","aliases":["EUVD-2022-7518","GHSA-5vw4-v588-pgv8","GO-2020-0023"],"status":"published","title":"Timing side-channel in github.com/robbert229/jwt","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00812,"percentile":0.5722,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-668"],"published":"2021-04-14T20:04:52Z","modified":"2026-06-17T00:21:18Z","fixes":[{"ecosystem":"Go","package":"github.com/robbert229/jwt","fixed_in":["0.0.0-20170426191122-ca1404ee6e83"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/robbert229/jwt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.0-20170426191122-ca1404ee6e83"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/robbert229/jwt","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20170426191122-ca1404ee6e83"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/robbert229/jwt","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20170426191122-ca1404ee6e83"}]}]}],"products":[{"vendor":"github.com/robbert229/jwt","product":"github.com/robbert229/jwt"},{"vendor":"json_web_token_project","product":"json_web_token"}],"references":[{"url":"https://github.com/robbert229/jwt/commit/ca1404ee6e83fcbafb66b09ed0d543850a15b654","tags":["x_transferred","Patch","Third Party Advisory","web","fix"]},{"url":"https://github.com/robbert229/jwt/issues/12","tags":["x_transferred","Issue Tracking","Third Party Advisory","web"]},{"url":"https://pkg.go.dev/vuln/GO-2020-0023","tags":["x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-10004","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5vw4-v588-pgv8"},{"url":"https://github.com/robbert229/jwt","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2015-10004","title":"Timing side-channel in github.com/robbert229/jwt","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.","status":"published","published":"2022-12-27T21:13:11.967Z","modified":"2025-04-11T22:58:21.63Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:40.217028Z"}],"euvd":[{"id":"EUVD-2022-7518","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.","status":"published","published":"2022-12-27T21:13:11Z","modified":"2025-04-11T22:58:21Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:34.493984Z"}],"ghsa":[{"id":"GHSA-5vw4-v588-pgv8","title":"robbert229/jwt's token validation methods vulnerable to a timing side-channel during HMAC comparison","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.","status":"published","published":"2022-12-28T00:30:23Z","modified":"2024-05-20T19:41:57Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:37:50.750599Z"}],"nvd":[{"id":"CVE-2015-10004","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.","status":"published","published":"2022-12-27T22:15:10.947Z","modified":"2026-06-17T00:21:18.46Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:03:20.037729Z"}],"osv":[{"id":"GHSA-5vw4-v588-pgv8","title":"robbert229/jwt's token validation methods vulnerable to a timing side-channel during HMAC comparison","description":"Token validation methods are susceptible to a timing side-channel during HMAC comparison. 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