8.8

CVE-2021-41230: pomerium Incorrect Authorization

CVSS: 8.8v3.1HighModified
AliasesGHSA-j6wp-3859-vxfgGO-2021-0258
Published 05-11-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-41230 is a high (CVSS 8.8) Incorrect Authorization vulnerability in pomerium. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 57.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.86%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

0.00 pp

From 0.86% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.86%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/pomerium1 product
  • pomerium≥ 0.14.0, < 0.15.6 | < 0.15.6
Pomerium1 product

2 vendors · 2 products

References

6 links