How severe is CVE-2026-12053?

CVE-2026-12053 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-12053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-12053?

CVE-2026-12053 affects Gitlab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-12053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-12053 have an EU (EUVD) identifier?

Yes. CVE-2026-12053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39169.

When was CVE-2026-12053 published?

CVE-2026-12053 was published on 2026-06-25 and last updated on 2026-06-26.

CVE-2026-12053

CVE-2026-12053 is a high-severity vulnerability in Gitlab with a CVSS 3.x base score of 8.6. 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-532.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39169
Weakness: CWE-532
Affected product: Gitlab
Published: 2026-06-25
Last modified: 2026-06-26

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.1 that under certain conditions could have allowed a user to access sensitive information that had already been committed to a project, due to insufficient output filtering in Duo Workflows.

Frequently asked questions

What is CVE-2026-12053?: GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.1 that under certain conditions could have allowed a user to access sensitive information that had already been committed to a project, due to insufficient output filtering in Duo Workflows.
How severe is CVE-2026-12053?: CVE-2026-12053 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-12053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-12053?: CVE-2026-12053 affects Gitlab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-12053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-12053 have an EU (EUVD) identifier?: Yes. CVE-2026-12053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39169.
When was CVE-2026-12053 published?: CVE-2026-12053 was published on 2026-06-25 and last updated on 2026-06-26.

References

Affected products (1)

cpe:2.3:a:gitlab:gitlab:19.1.0:*:*:*:enterprise:*:*:*

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