CVE-2026-84651

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-84651
StatePUBLISHED
Assignerjenkins
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-02 16:17:29 UTC
Updated2026-09-11 21:16:20 UTC
DescriptionIn Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the REST API and CLI endpoints for updating agent configuration do not prevent a submitted configuration from overwriting a different agent by specifying that agent's name in the submitted XML document, allowing attackers with Agent/Configure permission on one agent to take over a different agent, gaining control of its configuration and obtaining access to its inbound agent secret and environment variables.

Risk And Classification

Primary CVSS: v3.1 6.3 MEDIUM from ADP

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

EPSS: 0.002080000 probability, percentile 0.110210000 (date 2026-09-11)

Problem Types: CWE-284 | CWE-284 CWE-284 Improper Access Control

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Jenkins Jenkins All All All All
Application Jenkins Jenkins All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Jenkins Project Jenkins unaffected 2.580 * maven Not specified
CNA Jenkins Project Jenkins unaffected 2.568.3 2.568.* maven Not specified

References

ReferenceSourceLinkTags
www.jenkins.io/security/advisory/2026-09-02 [email protected] www.jenkins.io Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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