How severe is CVE-2026-4363?

CVE-2026-4363 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-4363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4363?

CVE-2026-4363 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-4363?

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

Does CVE-2026-4363 have an EU (EUVD) identifier?

Yes. CVE-2026-4363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15481.

When was CVE-2026-4363 published?

CVE-2026-4363 was published on 2026-03-25 and last updated on 2026-06-17.

CVE-2026-4363

CVE-2026-4363 is a low-severity vulnerability in Gitlab with a CVSS 3.x base score of 3.7. 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-863.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-15481
Weakness: CWE-863
Affected product: Gitlab
Published: 2026-03-25
Last modified: 2026-06-17

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.1 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user to gain unauthorized access to resources due to improper caching of authorization decisions.

Frequently asked questions

What is CVE-2026-4363?: GitLab has remediated an issue in GitLab EE affecting all versions from 18.1 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user to gain unauthorized access to resources due to improper caching of authorization decisions.
How severe is CVE-2026-4363?: CVE-2026-4363 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-4363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4363?: CVE-2026-4363 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-4363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4363 have an EU (EUVD) identifier?: Yes. CVE-2026-4363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15481.
When was CVE-2026-4363 published?: CVE-2026-4363 was published on 2026-03-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:enterprise:*:*:*

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