A flaw was found in SSSD. An unprivileged local user can repeatedly request lookups for nonexistent entries through the Name Service Switch (NSS) responder. Because the negative cache does not limit the total number of stored entries and only removes expired records when an existing key is rechecked, the cache can grow without bound. This behavior can lead to memory exhaustion, resulting in a Denial of Service (DoS) as the responder becomes unresponsive or terminates.
Metrics
Affected Vendors & Products
References
History
Sat, 31 Oct 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:5 |
Tue, 06 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 06 Oct 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Tue, 06 Oct 2026 04:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Sssd
Sssd sssd |
|
| Vendors & Products |
Sssd
Sssd sssd |
Tue, 06 Oct 2026 01:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in SSSD. An unprivileged local user can repeatedly request lookups for nonexistent entries through the Name Service Switch (NSS) responder. Because the negative cache does not limit the total number of stored entries and only removes expired records when an existing key is rechecked, the cache can grow without bound. This behavior can lead to memory exhaustion, resulting in a Denial of Service (DoS) as the responder becomes unresponsive or terminates. | |
| Title | Sssd: sssd: denial of service via unbounded negative cache growth | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| Weaknesses | CWE-770 | |
| CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published: 2026-10-06T01:00:49.767Z
Updated: 2026-10-31T10:02:01.117Z
Reserved: 2026-10-01T17:24:07.171Z
Link: CVE-2026-104041
Updated: 2026-10-06T13:19:30.987Z
Status : Undergoing Analysis
Published: 2026-10-06T02:17:03.327
Modified: 2026-10-31T10:16:33.337
Link: CVE-2026-104041