CVE-2025-13781Public exploitNetwork attack vector

Authenticated AI settings tampering via unchecked mutation

Published Jan 9, 2026 · Updated Jan 9, 2026

Missing authorization in GitLab EE 18.5 through 18.7.0 allows remote authenticated users to alter instance-wide AI provider settings. The AiFeatureSettingUpdate mutation in ee/app/graphql/mutations/ai/feature_settings/update.rb omits authorize and inherits a policy that permits every signed-in account. A standard user with an API-scoped token can disable GitLab Duo features or redirect them to another provider across the instance.

CVSS severity6.5
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in GitLab EE 18.5 through 18.7.0 allows remote authenticated users to alter instance-wide AI provider settings. The AiFeatureSettingUpdate mutation in ee/app/graphql/mutations/ai/feature_settings/update.rb omits authorize and inherits a policy that permits every signed-in account. A standard user with an API-scoped token can disable GitLab Duo features or redirect them to another provider across the instance.

The record

CVE
CVE-2025-13781
Published
Jan 9, 2026
Updated
Jan 9, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 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=18.5 <18.5.5
  2. Affected versionversion=18.6 <18.6.3
  3. Affected versionversion=18.7 <18.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=18.5 <18.5.5; version=18.6 <18.6.3; version=18.7 <18.7.1

Published CVSS scores

6.5GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization

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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