Is CVE-2021-39896 in the CISA KEV catalog?

No. CVE-2021-39896 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39896?

CVE-2021-39896 has a CVSS v3 base score of 3.8 (LOW).

What is the EPSS score for CVE-2021-39896?

CVE-2021-39896 has an EPSS score of 0.60% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39896?

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

CVE & CISA-KEV Catalog

CVE-2021-39896

LOW

3.8

CVSS v3

NVD

Description

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

How to fix

Remediation Available

gitlabDebian

Fixed in:15.10.8+ds1-2CVE-2021-39896

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

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.60%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Vendor Advisory1

gitlab.com

Other references1

gitlab.com

Embed a live status badge for CVE-2021-39896

Markdown

[![CVE-2021-39896](https://tridentstack.com/cve/badge/CVE-2021-39896.svg)](https://tridentstack.com/cve/CVE-2021-39896)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-39896"><img src="https://tridentstack.com/cve/badge/CVE-2021-39896.svg" alt="CVE-2021-39896"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.