CVE-2022-39222

Name: CVE-2022-39222
Creator: NVD / NIST
Published: 2022-10-06T18:16:09.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2022-39222 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. An attacker can exploit this vulnerability by making a victim navigate to a malicious website and guiding them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token. Version 2.35.0 has introduced a fix for this issue. Users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linuxfoundation	Dex	< 2.35.0

References

https://github.com/dexidp/dex/commit/49471b14c8080ddb034d4855841123d378b7a634Patch, Third Party Advisory
https://github.com/dexidp/dex/security/advisories/GHSA-vh7g-p26c-j2cwExploit, Third Party Advisory
https://github.com/dexidp/dex/commit/49471b14c8080ddb034d4855841123d378b7a634Patch, Third Party Advisory
https://github.com/dexidp/dex/security/advisories/GHSA-vh7g-p26c-j2cwExploit, Third Party Advisory

Timeline

Published: Oct 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39222?

How severe is CVE-2022-39222?

CVE-2022-39222 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39222?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39222?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST