CVE-2025-1257Network attack vector

Service interruption via unbounded approval-rule field

Published Mar 13, 2025 · Updated Mar 14, 2025

Resource exhaustion in affected GitLab EE releases allows attackers to interrupt service via crafted approval-rule API input. The approval-rules API accepts an unbounded field for processing; GitLab has not published the field name or the resource-consuming operation. Exploitation requires user interaction and applies only to certain GitLab EE instances, with service availability as the sole published consequence.

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

Resource exhaustion in affected GitLab EE releases allows attackers to interrupt service via crafted approval-rule API input. The approval-rules API accepts an unbounded field for processing; GitLab has not published the field name or the resource-consuming operation. Exploitation requires user interaction and applies only to certain GitLab EE instances, with service availability as the sole published consequence.

The record

CVE
CVE-2025-1257
Published
Mar 13, 2025
Updated
Mar 14, 2025
Vendor
GitLab
Product
GitLab
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2025Record 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=12.3 <17.7.7
  2. Affected versionversion=17.8 <17.8.5
  3. Affected versionversion=17.9 <17.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLabversion=12.3 <17.7.7; version=17.8 <17.8.5; version=17.9 <17.9.2

Published CVSS scores

6.5GitLabCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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