CVE-2021-41230: Pomerium

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Pomerium is an open source identity-aware access proxy. In affected versions changes to the OIDC claims of a user after initial login are not reflected in policy evaluation when using `allowed_idp_claims` as part of policy. If using `allowed_idp_claims` and a user's claims are changed, Pomerium can make incorrect authorization decisions. This issue has been resolved in v0.15.6. For users unable to upgrade clear data on `databroker` service by clearing redis or restarting the in-memory databroker to force claims to be updated.

Affected products

• Pomerium Pomerium: from 0.14.0, before 0.15.6 (fixed in 0.15.6)

Published 2021-11-05. Last modified 2026-06-17.