CVE-2023-1965

Name: CVE-2023-1965
Creator: NVD / NIST
Published: 2023-05-03T21:15:18.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2023-1965 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue has been discovered in GitLab EE affecting all versions starting from 14.2 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. Lack of verification on RelayState parameter allowed a maliciously crafted URL to obtain access tokens granted for 3rd party Group SAML SSO logins. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab EE affecting all versions starting from 14.2 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. Lack of verification on RelayState parameter allowed a maliciously crafted URL to obtain access tokens granted for 3rd party Group SAML SSO logins. This feature isn't enabled by default.

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

0.43%

34.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 14.2, < 15.9.6
Gitlab	Gitlab	>= 15.10, < 15.10.5
Gitlab	Gitlab	>= 15.11, < 15.11.1

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1965.jsonThird Party Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/406235Broken Link
https://hackerone.com/reports/1923672Permissions Required
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1965.jsonThird Party Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/406235Broken Link
https://hackerone.com/reports/1923672Permissions Required

Timeline

Published: May 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1965?

How severe is CVE-2023-1965?

CVE-2023-1965 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1965?

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-2023-1965?

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

Scan your code now

Source: NVD / NIST