GoCD is vulnerable to authorization bypass via pipeline structure API

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55632
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-23 19:17:31 UTC
Updated2026-09-30 17:23:08 UTC
DescriptionGoCD is a continuous deliver server. From 20.2.0 until 26.1.0, the internal pipeline structure API used for autocompletion while editing pipeline, template, environment, and user-preference configuration returns its users-and-roles mode to regular authenticated users without requiring an administrator role. A lower-privileged user can enumerate configured user names and available role names, which can facilitate attacks against those users. The response does not reveal which roles are assigned to each user, and the endpoint cannot modify data. This issue is fixed in version 26.1.0.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.002950000 probability, percentile 0.206690000 (date 2026-10-16)

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gocd Gocd affected >= 20.2.0, < 26.1.0 Not specified

References

ReferenceSourceLinkTags
github.com/gocd/gocd/commit/c93d9e7b32b64257725a7d1c6f148fb571c86c7e [email protected] github.com
www.gocd.org/releases [email protected] www.gocd.org
github.com/gocd/gocd/security/advisories/GHSA-57pf-j652-c3c9 [email protected] github.com
github.com/gocd/gocd/releases/tag/26.1.0 [email protected] github.com
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