Critical severity9.8NVD Advisory· Published May 29, 2018· Updated Jun 17, 2026
CVE-2015-9235
CVE-2015-9235
Description
In jsonwebtoken node module before 4.2.2 it is possible for an attacker to bypass verification when a token digitally signed with an asymmetric key (RS/ES family) of algorithms but instead the attacker send a token digitally signed with a symmetric algorithm (HS* family).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jsonwebtokennpm | < 4.2.2 | 4.2.2 |
Affected products
8- osv-coords7 versionspkg:apk/chainguard/jitsucom-jitsupkg:apk/chainguard/jitsucom-jitsu-consolepkg:apk/chainguard/jitsucom-jitsu-rotorpkg:apk/wolfi/jitsucom-jitsupkg:apk/wolfi/jitsucom-jitsu-consolepkg:apk/wolfi/jitsucom-jitsu-rotorpkg:npm/jsonwebtoken
< 0+ 6 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 4.2.2
- HackerOne/jsonwebtoken node modulev5Range: <4.2.2
Patches
Vulnerability mechanics
References
8- github.com/auth0/node-jsonwebtoken/commit/1bb584bc382295eeb7ee8c4452a673a77a68b687nvdPatchThird Party AdvisoryWEB
- www.timmclean.net/2015/02/25/jwt-alg-none.htmlnvdExploitThird Party AdvisoryWEB
- auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/nvdBroken LinkVendor Advisory
- github.com/advisories/GHSA-c7hr-j4mj-j2w6ghsaADVISORY
- nodesecurity.io/advisories/17nvdThird Party Advisory
- nvd.nist.gov/vuln/detail/CVE-2015-9235ghsaADVISORY
- auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-librariesghsaWEB
- www.npmjs.com/advisories/17ghsaWEB
News mentions
0No linked articles in our index yet.