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Back to active CVEs
Medium · CVSS 5.9CVE-2026-92091

Jwcrypto: jwcrypto: denial of service via o(n^2) duplicate check on unbounded jwk key_ops arrayCVE-2026-92091

Answer in brief

CVE-2026-92091 records a Medium severity (CVSS 5.9) vulnerability in Jwcrypto: jwcrypto: denial of service via o(n^2) duplicate check on unbounded jwk key_ops array. The current sources do not mark it as known exploited. The current feed maps Red Hat/ansible-automation-platform-24/controller-rhel8 (generic), Red Hat/ansible-automation-platform-24/lightspeed-rhel8 (generic), Red Hat/ansible-automation-platform-25/controller-rhel8 (generic), Red Hat/ansible-automation-platform-25/gateway-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 16, 2026Source checked Oct 31, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026
Upstream Advisory

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-407
Source
CVE List V5
Source checked
Oct 31, 2026
References
3 linked sources
Open source record

Key facts

Risk
Medium · CVSS 5.9
Exploitation
Not marked as known exploited
Affected software
33 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/ansible-automation-platform-24/controller-rhel8 (generic), Red Hat/ansible-automation-platform-24/lightspeed-rhel8 (generic), Red Hat/ansible-automation-platform-25/controller-rhel8 (generic), Red Hat/ansible-automation-platform-25/gateway-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/ansible-automation-platform-24/controller-rhel8generic*Not reported
Red Hat/ansible-automation-platform-24/lightspeed-rhel8generic*Not reported
Red Hat/ansible-automation-platform-25/controller-rhel8generic*Not reported
Red Hat/ansible-automation-platform-25/gateway-rhel8generic*Not reported
Red Hat/ansible-automation-platform-25/lightspeed-rhel8generic*Not reported
Red Hat/ansible-automation-platform-26/controller-rhel9generic*Not reported
Red Hat/ansible-automation-platform-26/gateway-rhel9generic*Not reported
Red Hat/ansible-automation-platform-26/lightspeed-rhel9generic*Not reported
Red Hat/ansible-automation-platform-27/gateway-rhel9generic*Not reported
Red Hat/ansible-automation-platform-27/lightspeed-rhel9generic*Not reported
Red Hat/automation-controllergeneric*Not reported
Red Hat/idm:client/python-jwcryptogeneric*Not reported
Red Hat/idm:DL1/python-jwcryptogeneric*Not reported
Red Hat/python3.11-jwcryptogeneric*Not reported
Red Hat/python3.12-jwcryptogeneric*Not reported
Red Hat/python-jwcryptogeneric*Not reported
Red Hat/rhoai/odh-feature-server-rhel9generic*Not reported
Red Hat/rhoai/odh-kserve-storage-initializer-rhel9generic*Not reported
Red Hat/rhosp-rhel8/openstack-mistral-executorgeneric*Not reported
Red Hat/rhosp-rhel8/openstack-nova-apigeneric*Not reported
Red Hat/rhosp-rhel8/openstack-nova-compute-ironicgeneric*Not reported
Red Hat/rhosp-rhel8/openstack-novajoin-basegeneric*Not reported
Red Hat/rhosp-rhel8/openstack-novajoin-notifiergeneric*Not reported
Red Hat/rhosp-rhel8/openstack-novajoin-servergeneric*Not reported
Red Hat/rhosp-rhel8/openstack-tempestgeneric*Not reported
Red Hat/rhosp-rhel8/openstack-tripleoclientgeneric*Not reported
Red Hat/rhosp-rhel9/openstack-nova-apigeneric*Not reported
Red Hat/rhosp-rhel9/openstack-nova-compute-ironicgeneric*Not reported
Red Hat/rhosp-rhel9/openstack-novajoin-basegeneric*Not reported
Red Hat/rhosp-rhel9/openstack-novajoin-notifiergeneric*Not reported
Red Hat/rhosp-rhel9/openstack-novajoin-servergeneric*Not reported
Red Hat/rhosp-rhel9/openstack-tempestgeneric*Not reported
Red Hat/rhosp-rhel9/openstack-tripleoclientgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/ansible-automation-platform-24/controller-rhel8, Red Hat/ansible-automation-platform-24/lightspeed-rhel8, Red Hat/ansible-automation-platform-25/controller-rhel8.
  2. 2Review the reported fix. Source-reported 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.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.