CVE-2026-92141Network attack vectorHinoki check available

Phishing via unrestricted post-login redirect

Published Sep 16, 2026 · Updated Sep 16, 2026

Open redirect in Jenkins Keycloak Authentication Plugin 2.4.1 and earlier allows remote attackers to conduct phishing via crafted login URLs. The post-login flow redirects the authenticated browser to an attacker-controlled destination without restricting the target to Jenkins. A victim must follow the crafted URL and successfully authenticate before the browser is forwarded to the external site.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Open redirect in Jenkins Keycloak Authentication Plugin 2.4.1 and earlier allows remote attackers to conduct phishing via crafted login URLs. The post-login flow redirects the authenticated browser to an attacker-controlled destination without restricting the target to Jenkins. A victim must follow the crafted URL and successfully authenticate before the browser is forwarded to the external site.

The record

CVE
CVE-2026-92141
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
Jenkins Project
Product
Keycloak Authentication Plugin
Classifications
T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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 <=2.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Keycloak Authentication Pluginversion=0 <=2.4.1

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1566.002Spearphishing Link

Public exploit references

No public exploit references are available in this record.

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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