Critical severity9.8NVD Advisory· Published Mar 18, 2018· Updated Jun 17, 2026
CVE-2017-18239
CVE-2017-18239
Description
A time-sensitive equality check on the JWT signature in the JsonWebToken.validate method in main/scala/authentikat/jwt/JsonWebToken.scala in authentikat-jwt (aka com.jason-goodwin/authentikat-jwt) version 0.4.5 and earlier allows the supplier of a JWT token to guess bit after bit of the signature by repeating validation requests.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.jason-goodwin:authentikat-jwt_2.12Maven | < 0.4.6 | 0.4.6 |
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/jasongoodwin/authentikat-jwt/commit/2d2fa0d40ac8f2f7aa7e9b070fa1a25eee082cb0nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-3rhm-67j6-42jqghsaADVISORY
- github.com/jasongoodwin/authentikat-jwt/issues/12nvdIssue TrackingThird Party AdvisoryWEB
- github.com/jasongoodwin/authentikat-jwt/pull/36nvdIssue TrackingThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2017-18239ghsaADVISORY
News mentions
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