How severe is CVE-2023-3904?

CVE-2023-3904 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-3904 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3904?

CVE-2023-3904 affects Gitlab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3904?

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

When was CVE-2023-3904 published?

CVE-2023-3904 was published on 2023-12-15 and last updated on 2026-06-17.

CVE-2023-3904

CVE-2023-3904 is a medium-severity vulnerability in Gitlab with a CVSS 3.x base score of 4.3. 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-1287.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1287
Affected product: Gitlab
Published: 2023-12-15
Last modified: 2026-06-17

Description

An issue has been discovered in GitLab EE affecting all versions starting before 16.4.4, all versions starting from 16.5 before 16.5.4, all versions starting from 16.6 before 16.6.2. It was possible to overflow the time spent on an issue that altered the details shown in the issue boards.

Frequently asked questions

What is CVE-2023-3904?: An issue has been discovered in GitLab EE affecting all versions starting before 16.4.4, all versions starting from 16.5 before 16.5.4, all versions starting from 16.6 before 16.6.2. It was possible to overflow the time spent on an issue that altered the details shown in the issue boards.
How severe is CVE-2023-3904?: CVE-2023-3904 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-3904 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3904?: CVE-2023-3904 affects Gitlab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3904?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3904 published?: CVE-2023-3904 was published on 2023-12-15 and last updated on 2026-06-17.

References

Affected products (1)

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

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