CVE-2025-13436Network attack vector

Authenticated service interruption via CI input resource exhaustion

Published Mar 25, 2026 · Updated Mar 25, 2026

Resource exhaustion in affected GitLab CE/EE releases allows remote authenticated users to interrupt service through crafted CI inputs. CI configuration processing consumes excessive resources for certain attacker-controlled inputs, but GitLab has not disclosed the exact code locus or unbounded operation. Any authenticated user who can submit the relevant CI input can exhaust instance resources; the published impact is service interruption only.

CVSS severity6.5
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected GitLab CE/EE releases allows remote authenticated users to interrupt service through crafted CI inputs. CI configuration processing consumes excessive resources for certain attacker-controlled inputs, but GitLab has not disclosed the exact code locus or unbounded operation. Any authenticated user who can submit the relevant CI input can exhaust instance resources; the published impact is service interruption only.

The record

CVE
CVE-2025-13436
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-770, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 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=13.7 <18.8.7
  2. Affected versionversion=18.10 <18.10.1
  3. Affected versionversion=18.9 <18.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=13.7 <18.8.7; version=18.10 <18.10.1; version=18.9 <18.9.3

Published CVSS scores

6.5GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
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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