CVE-2022-4376Public exploitNetwork attack vector

Private-email account mapping via commit trailers

Published May 3, 2023 · Updated Feb 12, 2025

Email disclosure in GitLab 15.2 through 15.9.5, 15.10 through 15.10.4, and 15.11.0 lets remote authenticated users map private emails to accounts. CommitTrailersFilter parses a crafted -by commit trailer, passes its email to User.find_by_any_email, and renders a linked user handle without enforcing the private-email policy. An account able to push a commit and view its rendered trailer can confirm which account is associated with a known private address; unrelated account data is not disclosed.

CVSS severity3.1
Low
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Email disclosure in GitLab 15.2 through 15.9.5, 15.10 through 15.10.4, and 15.11.0 lets remote authenticated users map private emails to accounts. CommitTrailersFilter parses a crafted -by commit trailer, passes its email to User.find_by_any_email, and renders a linked user handle without enforcing the private-email policy. An account able to push a commit and view its rendered trailer can confirm which account is associated with a known private address; unrelated account data is not disclosed.

The record

CVE
CVE-2022-4376
Published
May 3, 2023
Updated
Feb 12, 2025
Vendor
GitLab
Product
GitLab
Classifications
T1589.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=>=15.10, <15.10.5
  2. Affected versionversion=>=15.11, <15.11.1
  3. Affected versionversion=>=15.2, <15.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=15.10, <15.10.5; version=>=15.11, <15.11.1; version=>=15.2, <15.9.6

Published CVSS scores

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

Weakness, pattern, technique

T1589.002Gather Victim Identity Information: Email Addresses

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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