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What are the severity rating and CVSS score of CVE-2026-84652?

The vulnerability CVE-2026-84652 has a severity score of 7.3 out of 10.0, which is classified as HIGH severity.

Which products and vendors are affected by CVE-2026-84652?

This vulnerability affects Jenkins from Jenkins Project.

How can I mitigate or patch CVE-2026-84652?

Consult the vendor's security advisory for details and patches.

CVE-2026-84652: CVE-2026-84652 Vulnerability (HIGH Severity, CVSS: 7.3)

Description

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.

Executive Summary

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Technical Details

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Mitigations

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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References

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-09-02T16:17:29.893Z",
  "pubdate": "2026-09-02T16:17:29.893Z"
}

Sceawere

CVE-2026-84652 Verified Sceawere Triage Sources: NVD / CISA KEV

Vulnerability Metadata

Narrative and Response

Description

Executive Summary

Technical Details

Mitigations

References

Additional Metadata