CVE-2023-33189

10.0 CRITICAL 0.9% exploit odds Fix listed Auth & access

What it is

Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization decisions may be made by Pomerium. This issue has been patched in versions 0.17.4, 0.18.1, 0.19.2, 0.20.1, 0.21.4 and 0.22.2.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2023-05-30 06:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 06:01 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.9% in the next 30 days (EPSS).
Severity: 10.0 CRITICAL (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2023-05-30 06:16 UTC
Last modified: 2026-06-17 06:01 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-285
Record status: Modified

Affected

Pomerium < 0.17.4
Pomerium < 0.19.2
Pomerium < 0.21.4
Pomerium < 0.22.2
Pomerium 0.18.0
Pomerium 0.20.0

Attack profile CVSS 3.1 · 10.0

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record