How severe is CVE-2022-2251?

CVE-2022-2251 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-2251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-2251?

CVE-2022-2251 affects Gitlab Runner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-2251?

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

When was CVE-2022-2251 published?

CVE-2022-2251 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2022-2251

CVE-2022-2251 is a medium-severity vulnerability in Gitlab Runner with a CVSS 3.x base score of 4.8. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Gitlab Runner
Published: 2023-01-17
Last modified: 2026-06-17

Description

Improper sanitization of branch names in GitLab Runner affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2 allows a user who creates a branch with a specially crafted name and gets another user to trigger a pipeline to execute commands in the runner as that other user.

Frequently asked questions

What is CVE-2022-2251?: Improper sanitization of branch names in GitLab Runner affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2 allows a user who creates a branch with a specially crafted name and gets another user to trigger a pipeline to execute commands in the runner as that other user.
How severe is CVE-2022-2251?: CVE-2022-2251 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-2251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-2251?: CVE-2022-2251 affects Gitlab Runner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-2251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-2251 published?: CVE-2022-2251 was published on 2023-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitlab:runner:*:*:*:*:*:*:*:*

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