CVE-2026-92091
A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.
- Score
- CVSS 3.1 5.9 Medium
- Status
- Awaiting Analysis - secalert@redhat.com
- Published
- 2026-09-16
- Last modified
- 2026-09-16
- Weaknesses
- CWE-407
Affected products
- Ansible Automation Platform (Redhat)
- Enterprise Linux (Redhat)
- Openshift Ai (Redhat)
- Openstack (Redhat)
References
- https://access.redhat.com/security/cve/CVE-2026-92091
- https://bugzilla.redhat.com/show_bug.cgi?id=2533849
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863h
