Is CVE-2021-41230 actively exploited?

No active exploitation of CVE-2021-41230 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-41230 be exploited remotely?

Yes. CVE-2021-41230 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-41230?

CVE-2021-41230 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-41230

CWE-863Published: November 5, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-41230 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.