Is CVE-2021-39945 in the CISA KEV catalog?

No. CVE-2021-39945 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39945?

CVE-2021-39945 has a CVSS v3 base score of 2.7 (LOW).

What is the EPSS score for CVE-2021-39945?

CVE-2021-39945 has an EPSS score of 0.91% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39945?

Upgrade gitlab on debian unstable to 15.10.8+ds1-2 or later.

CVE & CISA-KEV Catalog

CVE-2021-39945

LOW

2.7

CVSS v3

NVD

Description

Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked

CWE-863Incorrect Authorization

How to fix

Remediation Available

gitlabDebian

Fixed in:15.10.8+ds1-2CVE-2021-39945

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.91%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Third-Party Advisory2

Other references1

gitlab.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.