CVE-2026-1069Network attack vector

Unauthenticated service interruption via recursive GraphQL queries

Published Mar 11, 2026 · Updated Mar 11, 2026

Uncontrolled recursion in GitLab CE/EE 18.9 before 18.9.2 allows remote attackers to interrupt service through crafted GraphQL requests. The GraphQL API recursively processes attacker-controlled query structure without an effective recursion bound; the affected resolver and call path are undisclosed. No authentication or user interaction is required, and the published impact is limited to interruption of the affected GitLab instance.

CVSS severity7.5
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in GitLab CE/EE 18.9 before 18.9.2 allows remote attackers to interrupt service through crafted GraphQL requests. The GraphQL API recursively processes attacker-controlled query structure without an effective recursion bound; the affected resolver and call path are undisclosed. No authentication or user interaction is required, and the published impact is limited to interruption of the affected GitLab instance.

The record

CVE
CVE-2026-1069
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-674, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 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=18.9 <18.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLabversion=18.9 <18.9.2

Published CVSS scores

7.5GitLabCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499Endpoint Denial of Service

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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