CVE-2026-91142
Cockpit: cockpit: unauthorized modification of login records via integer overflow
CVSS Score
3.6
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user's login process to read or overwrite the legacy log entries of other accounts.
| CWE | CWE-190 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Sep 18, 2026 |
| Last Updated | Oct 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat OpenShift Dev Spaces
All versions affected Red Hat / Red Hat OpenShift Dev Spaces
All versions affected Red Hat / Red Hat OpenShift Dev Spaces
All versions affected References
Credits
This issue was discovered by Found by AISLE in partnership with Red Hat.