CVE-2020-7977Public exploitNetwork attack vector

Protected pipeline status overwrite via unchecked commit API

Published Feb 5, 2020 · Updated Aug 4, 2024

Incorrect permissions in GitLab EE 8.8 through 12.7.2 allow remote authenticated users to overwrite protected-branch pipeline status. The commit-status API accepts an existing stage name and overwrites the aggregate pipeline status without checking whether the commit belongs to a protected ref. Project Developer access is sufficient to falsify deployment results or satisfy the pipeline-must-succeed merge gate.

CVSS severity5.3
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in GitLab EE 8.8 through 12.7.2 allow remote authenticated users to overwrite protected-branch pipeline status. The commit-status API accepts an existing stage name and overwrites the aggregate pipeline status without checking whether the commit belongs to a protected ref. Project Developer access is sufficient to falsify deployment results or satisfy the pipeline-must-succeed merge gate.

The record

CVE
CVE-2020-7977
Published
Feb 5, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 5, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
5.3UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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