How severe is CVE-2020-13309?

CVE-2020-13309 has a CVSS 3.x base score of 5.4, 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 low, and availability low.

Is CVE-2020-13309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13309?

CVE-2020-13309 affects Gitlab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13309?

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

When was CVE-2020-13309 published?

CVE-2020-13309 was published on 2020-09-14 and last updated on 2026-06-17.

CVE-2020-13309

CVE-2020-13309 is a medium-severity vulnerability in Gitlab with a CVSS 3.x base score of 5.4. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 6.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Gitlab
Published: 2020-09-14
Last modified: 2026-06-17

Description

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was vulnerable to a blind SSRF attack through the repository mirroring feature.

Frequently asked questions

What is CVE-2020-13309?: A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was vulnerable to a blind SSRF attack through the repository mirroring feature.
How severe is CVE-2020-13309?: CVE-2020-13309 has a CVSS 3.x base score of 5.4, 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 low, and availability low.
Is CVE-2020-13309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13309?: CVE-2020-13309 affects Gitlab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13309 published?: CVE-2020-13309 was published on 2020-09-14 and last updated on 2026-06-17.

References

Affected products (1)

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

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