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cpe:2.3:a:nearform:get-jwks:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorNearform (7d4e3848-5450-5868-b418-5365abc4686a)
ProductGet Jwks (866cb4ec-f1c0-5457-b3da-aaa9062ff6bd)
Edition*
Language*
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NotesImported from gcve-enriched-dumps CVE data

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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2025-59936 vulnerable 2026-06-08 07:35:23.491054 get-jwks poisoned JWKS cache allows post-fetch issuer validation bypass
CRITICAL (9.4)
get-jwks contains fetch utils for JWKS keys. In versions prior to 11.0.2, a vulnerability in get-jwks can lead to cache poisoning in the JWKS key-fetching mechanism. When the iss (issuer) claim is validated only after keys are retrieved from the cache, it is possible for cached keys from an unexpected issuer to be reused, resulting in a bypass of issuer validation. This design flaw enables a potential attack where a malicious actor crafts a pair of JWTs, the first one ensuring that a chosen public key is fetched and stored in the shared JWKS cache, and the second one leveraging that cached key to pass signature validation for a targeted iss value. The vulnerability will work only if the iss validation is done after the use of get-jwks for keys retrieval. This issue has been patched in version 11.0.2.
Published: 2025-09-27T00:22:10.412Z
Updated: 2025-09-29T14:55:22.162Z
Reference links
Imported from gcve-enriched-dumps CVE data

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