CVE-2021-39927
MEDIUM
4.3
CVSS Score
Published: January 18, 2022 at 04:51 PM UTC
Updated: June 17, 2026 at 04:04 AM UTC
1 product affected across 1 vendorGitLab
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%
Description
Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 14.4.5v < 14.5.3v < 14.6.214.5.0 ≤ v ≤ 14.5.314.6.0 ≤ v ≤ 14.6.38.4 ≤ v ≤ 14.4.5
Affected range stops below 14.4.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.5.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.6.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39927.jsonx_refsource_MISCBroken LinkVendor Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/gitlab/-/issues/340476CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-918
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