Description
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.
Metrics
CVSS 3.1 5.9/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 7 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
| Red Hat | Red Hat OpenStack Platform 17.1 | — |
References
Timeline
- Published
- Sep 16, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Awaiting Analysis