CVE-2026-84652
Last modified
CVE-2026-84652 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jenkins | Jenkins | < 2.568.3 |
| Jenkins | Jenkins | < 2.580 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Related CVEs from 2026
- CVE-2026-84646In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user …4.3
- CVE-2026-84647In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093…8.8
- CVE-2026-84648In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the s…8.8
- CVE-2026-84649In Stapler 1839.ved17667b_a_eb_5 through 2107.v8dfcb_e8ed317…8.8
- CVE-2026-84650In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, trans…8.8
- CVE-2026-84651In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the R…6.3
- CVE-2026-84653Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 th…3.5
- CVE-2026-84654In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093…5.4
- CVE-2026-84655Jenkins 2.579 and earlier, LTS 2.568.2 and earlier does not …4.3
- CVE-2026-84656A missing permission check in Jenkins 2.579 and earlier, LTS…4.3
- CVE-2026-84657In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the b…4.2
- CVE-2026-84658Jenkins Script Security Plugin 1412.v7737b_3405f86 and earli…4.3
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