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cpe:2.3:a:appsup-dart:jose:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorAppsup Dart (0bfc8407-4783-5700-9858-cd4fabbe6206)
ProductJose (fee8710d-528b-5004-8007-c3923e7ee1f7)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from gcve-enriched-dumps CVE data

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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2026-34240 vulnerable 2026-06-08 07:59:11.938557 jose vulnerable to untrusted JWK header key acceptance during signature verification
HIGH (7.5)
JOSE is a Javascript Object Signing and Encryption (JOSE) library. Prior to version 0.3.5+1, a vulnerability in jose could allow an unauthenticated, remote attacker to forge valid JWS/JWT tokens by using a key embedded in the JOSE header (jwk). The vulnerability exists because key selection could treat header-provided jwk as a verification candidate even when that key was not present in the trusted key store. Since JOSE headers are untrusted input, an attacker could exploit this by creating a token payload, embedding an attacker-controlled public key in the header, and signing with the matching private key. Applications using affected versions for token verification are impacted. This issue has been patched in version 0.3.5+1. A workaround for this issue involves rejecting tokens where header jwk is present unless that jwk matches a key already present in the application's trusted key store.
Published: 2026-03-31T15:44:23.578Z
Updated: 2026-04-01T14:03:14.969Z
Reference links
Imported from gcve-enriched-dumps CVE data

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