How severe is CVE-2021-22218?

CVE-2021-22218 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-22218 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22218?

CVE-2021-22218 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-2021-22218?

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

When was CVE-2021-22218 published?

CVE-2021-22218 was published on 2021-06-08 and last updated on 2026-06-17.

CVE-2021-22218

CVE-2021-22218 is a low-severity vulnerability in Gitlab with a CVSS 3.x base score of 2.6. 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-295.

Key facts

Severity: Low (CVSS 3.x base score 2.6)
CVSS v2: 4.0
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Gitlab
Published: 2021-06-08
Last modified: 2026-06-17

Description

All versions of GitLab CE/EE starting from 12.8 before 13.10.5, all versions starting from 13.11 before 13.11.5, and all versions starting from 13.12 before 13.12.2 were affected by an issue in the handling of x509 certificates that could be used to spoof author of signed commits.

Frequently asked questions

What is CVE-2021-22218?: All versions of GitLab CE/EE starting from 12.8 before 13.10.5, all versions starting from 13.11 before 13.11.5, and all versions starting from 13.12 before 13.12.2 were affected by an issue in the handling of x509 certificates that could be used to spoof author of signed commits.
How severe is CVE-2021-22218?: CVE-2021-22218 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-22218 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22218?: CVE-2021-22218 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-2021-22218?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22218 published?: CVE-2021-22218 was published on 2021-06-08 and last updated on 2026-06-17.

References

Affected products (2)

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

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