CVE-2022-2908Public exploitNetwork attack vector

Service interruption via commit-trailer regex backtracking

Published Oct 17, 2022 · Updated May 13, 2025

Stored ReDoS in GitLab CE/EE 10.7 through 15.1.4, 15.2 through 15.2.2, and 15.3.0 allows remote authenticated users to interrupt service. The commit_trailers_filter.rb FILTER_REGEXP combines greedy author matching with adjacent whitespace quantifiers, causing catastrophic backtracking on a crafted commit trailer. An authenticated user must store the malicious commit message, after which unauthenticated GET requests to the branch commits page consume one CPU core until timeout and repeated requests can take the instance down.

CVSS severity4.3
Medium
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored ReDoS in GitLab CE/EE 10.7 through 15.1.4, 15.2 through 15.2.2, and 15.3.0 allows remote authenticated users to interrupt service. The commit_trailers_filter.rb FILTER_REGEXP combines greedy author matching with adjacent whitespace quantifiers, causing catastrophic backtracking on a crafted commit trailer. An authenticated user must store the malicious commit message, after which unauthenticated GET requests to the branch commits page consume one CPU core until timeout and repeated requests can take the instance down.

The record

CVE
CVE-2022-2908
Published
Oct 17, 2022
Updated
May 13, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-1333, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2022CVE publishedPublication date reported by the CVE source.
  2. May 13, 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=>=10.7, <15.1.5
  2. Affected versionversion=>=15.2, <15.2.3
  3. Affected versionversion=>=15.3, <15.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=10.7, <15.1.5; version=>=15.2, <15.2.3; version=>=15.3, <15.3.1

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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-1333Inefficient Regular Expression Complexity
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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