CVE-2021-39869Public exploitNetwork attack vector

Trigger-token disclosure via overinclusive project exports

Published Oct 5, 2021 · Updated Aug 4, 2024

Information exposure in affected GitLab releases starting with 8.9 allows remote authenticated users to read trigger tokens from project exports. The export configuration includes the triggers association, causing project.json to serialize plaintext tokens belonging to other maintainers. A project Maintainer must generate and download the export; a disclosed token can impersonate its owner to run pipelines with that owner's project access.

CVSS severity6.4
Medium
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in affected GitLab releases starting with 8.9 allows remote authenticated users to read trigger tokens from project exports. The export configuration includes the triggers association, causing project.json to serialize plaintext tokens belonging to other maintainers. A project Maintainer must generate and download the export; a disclosed token can impersonate its owner to run pipelines with that owner's project access.

The record

CVE
CVE-2021-39869
Published
Oct 5, 2021
Updated
Aug 4, 2024
Vendor
GitLab
Product
GitLab
Classifications
T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=>=14.2, <14.2.5
  2. Affected versionversion=>=14.3, <14.3.1
  3. Affected versionversion=>=8.9, <14.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=14.2, <14.2.5; version=>=14.3, <14.3.1; version=>=8.9, <14.1.7

Published CVSS scores

6.4GitLabCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/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.

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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

T1552.001Unsecured Credentials: Credentials In Files

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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