CVE-2015-9235
N/A
Published: May 29, 2018 at 08:00 PM UTC
Updated: June 17, 2026 at 12:36 AM UTC
1 product affected across 1 vendorJsonwebtoken
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Severity
N/A
Exploit prediction
EPSS 9%
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).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 4.2.2
Affected range stops below 4.2.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCBroken LinkVendor Advisory
Source: [email protected]
https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/auth0/node-jsonwebtoken/commit/1bb584bc382295eeb7ee8c4452a673a77a68b687x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.timmclean.net/2015/02/25/jwt-alg-none.htmlQuick Info
StatusMODIFIED
CWE
CWE-20CWE-327
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