Public vulnerability disclosure
CVE-2026-92091
Jwcrypto: jwcrypto: denial of service via o(n^2) duplicate check on unbounded jwk key_ops array
publishedCWE-407
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.
Technical severity5.9 mediumCVSS 3.1 · CNA: redhat
Published2026-09-16Source updated 2026-11-06
Collected2026-11-062 attributed sources
Fixes and workarounds
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-24/controller-rhel8
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-24/lightspeed-rhel8
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-25/controller-rhel8
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-25/gateway-rhel8
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-25/lightspeed-rhel8
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-26/controller-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-26/gateway-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-26/lightspeed-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-27/gateway-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat ansible-automation-platform-27/lightspeed-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat automation-controller
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat python3.11-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Ansible Automation Platform 2 Red Hat python3.12-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 10 Red Hat python-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 7 Red Hat python-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat idm:client/python-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat idm:DL1/python-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat python-jwcrypto
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift AI (RHOAI) Red Hat rhoai/odh-feature-server-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift AI (RHOAI) Red Hat rhoai/odh-kserve-storage-initializer-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-mistral-executor
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-nova-api
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-nova-compute-ironic
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-novajoin-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-novajoin-notifier
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-novajoin-server
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-tempest
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 16.2 Red Hat rhosp-rhel8/openstack-tripleoclient
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-nova-api
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-nova-compute-ironic
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-novajoin-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-novajoin-notifier
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-novajoin-server
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-tempest
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat OpenStack Platform 17.1 Red Hat rhosp-rhel9/openstack-tripleoclient
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.9 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: redhat |
Exploit evidence
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863h
exploit · ADP: CISA-ADP
References
- https://access.redhat.com/security/cve/CVE-2026-92091CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2533849CNA: redhat · issue-tracking, x_refsource_REDHAT
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863hCNA: redhat
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863hADP: CISA-ADP · exploit
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