How severe is CVE-2020-13333?

CVE-2020-13333 has a CVSS 3.x base score of 4.3, 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 none, and availability low.

Is CVE-2020-13333 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13333?

CVE-2020-13333 primarily affects Gitlab. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-13333?

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

When was CVE-2020-13333 published?

CVE-2020-13333 was published on 2020-10-06 and last updated on 2026-06-17.

CVE-2020-13333

CVE-2020-13333 is a medium-severity vulnerability in Gitlab with a CVSS 3.x base score of 4.3. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Gitlab
Published: 2020-10-06
Last modified: 2026-06-17

Description

A potential DOS vulnerability was discovered in GitLab versions 13.1, 13.2 and 13.3. The api to update an asset as a link from a release had a regex check which caused exponential number of backtracks for certain user supplied values resulting in high CPU usage.

Frequently asked questions

What is CVE-2020-13333?: A potential DOS vulnerability was discovered in GitLab versions 13.1, 13.2 and 13.3. The api to update an asset as a link from a release had a regex check which caused exponential number of backtracks for certain user supplied values resulting in high CPU usage.
How severe is CVE-2020-13333?: CVE-2020-13333 has a CVSS 3.x base score of 4.3, 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 none, and availability low.
Is CVE-2020-13333 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13333?: CVE-2020-13333 primarily affects Gitlab. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-13333?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13333 published?: CVE-2020-13333 was published on 2020-10-06 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:gitlab:gitlab:13.1.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:13.1.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:13.2.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:13.2.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:13.3.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:13.3.0:*:*:*:enterprise:*:*:*

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