High severity · published Sep 28, 2026
CVE-2026-88805
Session Not Revoked Server-Side on Logout in Rancher
8.1
CVSS
0.2%
EPSS
No
On KEV
Description
Incorrect credential cleaning on logout could be used by remote attackers to keep access credentials even after the account was logged out. Affected is SUSE Rancher 2.15 before 2.15.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Rancher · SUSE
2.15.0 before 2.15.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88805
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88805
vendor-advisory
https://github.com/rancher/rancher/security/advisories/GHSA-6vpq-mf48-9794
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