CVE-2023-36561Public exploitNetwork attack vector

Unauthenticated secret theft via misclassified pipeline resource triggers

Published Oct 10, 2023 · Updated Apr 14, 2025

Improper access control in Microsoft Azure DevOps Server 2020 and 2022 allows remote attackers to steal pipeline secrets. A pipeline resource trigger launched from a forked pull-request build is misclassified as an internal build, so attacker-edited pipeline code runs with secrets and elevated workflow permissions. Exploitation requires a public GitHub repository that builds forked pull requests with pipeline triggers enabled; no maintainer action is required.

CVSS severity7.3
High
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft Azure DevOps Server 2020 and 2022 allows remote attackers to steal pipeline secrets. A pipeline resource trigger launched from a forked pull-request build is misclassified as an internal build, so attacker-edited pipeline code runs with secrets and elevated workflow permissions. Exploitation requires a public GitHub repository that builds forked pull requests with pipeline triggers enabled; no maintainer action is required.

The record

CVE
CVE-2023-36561
Published
Oct 10, 2023
Updated
Apr 14, 2025
Vendor
Microsoft
Product
Azure DevOps Server
Classifications
CWE-284, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 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=2020.0.0 <20230927.1
  2. Affected versionversion=2020.1.0 <20230926.2
  3. Affected versionversion=2022.0.0 <20230926.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure DevOps Serverversion=2020.0.0 <20230927.1; version=2020.1.0 <20230926.2; version=2022.0.0 <20230926.1

Published CVSS scores

7.3Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

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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