CVE-2026-84667 — HIGH (7.1)

Vulnerability Description

Jenkins ThinBackup Plugin 2.1.4 and earlier allows overwriting the plugin's backup configuration through Stapler data binding, allowing attackers to redirect backup writes to an attacker-specified directory and to include arbitrary files from the Jenkins controller file system in backups.

CVSS Score

7.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-22

References

https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4099

FAQ

What is CVE-2026-84667?

CVE-2026-84667 is a vulnerability with a CVSS score of 7.1 (HIGH). Jenkins ThinBackup Plugin 2.1.4 and earlier allows overwriting the plugin's backup configuration through Stapler data binding, allowing attackers to redirect backup writes to an attacker-specified dir...

How severe is CVE-2026-84667?

CVE-2026-84667 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-84667?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.