CVE-2026-86341Network attack vectorHinoki check available

Unapproved production deployments via post-modification access checks

Published Sep 16, 2026 · Updated Sep 16, 2026

Improper access control in GitLab EE allows remote authenticated users to disable protected-environment deployment approvals. The approval-rule workflow performs its authorization check only after modifying the protected resource. Owner or Maintainer permissions and unspecified additional conditions are required, after which unapproved deployments can reach production.

CVSS severity4.4
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in GitLab EE allows remote authenticated users to disable protected-environment deployment approvals. The approval-rule workflow performs its authorization check only after modifying the protected resource. Owner or Maintainer permissions and unspecified additional conditions are required, after which unapproved deployments can reach production.

The record

CVE
CVE-2026-86341
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
GitLab
Product
GitLab
Classifications
T1562.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.1 <19.1.8
  2. Affected versionversion=19.2 <19.2.6
  3. Affected versionversion=19.3 <19.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

GitLab · GitLabversion=17.1 <19.1.8; version=19.2 <19.2.6; version=19.3 <19.3.2

Published CVSS scores

4.4GitLabCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

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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