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CVE-2021-39908

HIGH
7.5
CVSS Score
Published: April 1, 2022 at 10:17 PM UTC
Updated: June 17, 2026 at 04:04 AM UTC
1 product affected across 1 vendorGitLab

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

In all versions of GitLab CE/EE starting from 0.8.0 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 certain Unicode characters can be abused to commit malicious code into projects without being noticed in merge request or source code viewer UI.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab· GitLabmaven
95%
v < 14.2.6v < 14.3.4v < 14.4.10.8.0 ≤ v < 14.2.614.3.0 ≤ v < 14.3.414.4.0
Affected range stops below 14.2.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39908.json
x_refsource_MISCBroken Link
Source: [email protected]
https://gitlab.com/gitlab-org/gitlab/-/issues/337193
x_refsource_MISCPermissions RequiredThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/1280077

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94

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