How severe is CVE-2023-1965?

CVE-2023-1965 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-1965 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1965?

CVE-2023-1965 affects Gitlab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1965?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-1965 published?

CVE-2023-1965 was published on 2023-05-03 and last updated on 2026-06-17.

CVE-2023-1965

CVE-2023-1965 is a medium-severity vulnerability in Gitlab with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Gitlab
Published: 2023-05-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-1965?: 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.
How severe is CVE-2023-1965?: CVE-2023-1965 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-1965 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1965?: CVE-2023-1965 affects Gitlab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1965?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-1965 published?: CVE-2023-1965 was published on 2023-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

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