CVE-2026-57285Network attack vector

Authenticated server URL disclosure via unchecked endpoint

Published Jun 24, 2026 · Updated Jun 24, 2026

Authorization bypass in Jenkins GitHub Branch Source Plugin 1967.1969.v205fd594c821 and earlier allows remote authenticated users to read server URLs. The plugin's HTTP endpoint for listing globally configured GitHub API endpoints returns their URLs without checking the caller's permission. Overall/Read access is sufficient, and the exposure is limited to GitHub Enterprise server URLs rather than credentials or configuration changes.

CVSS severity4.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Jenkins GitHub Branch Source Plugin 1967.1969.v205fd594c821 and earlier allows remote authenticated users to read server URLs. The plugin's HTTP endpoint for listing globally configured GitHub API endpoints returns their URLs without checking the caller's permission. Overall/Read access is sufficient, and the exposure is limited to GitHub Enterprise server URLs rather than credentials or configuration changes.

The record

CVE
CVE-2026-57285
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Jenkins Project
Product
GitHub Branch Source
Classifications
CWE-862, T1592.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record 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=0 <=1967.1969.v205fd594c821

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · GitHub Branch Sourceversion=0 <=1967.1969.v205fd594c821

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1592.002Gather Victim Host Information: Software

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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