Red HatCVE-2026-90995
Red Hat Enterprise Linux 10: null pointer dereference
Medium5.5CVE-2026-90995 · Published Sep 14, 2026 · updated Sep 16, 2026
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the `pam_app_services` configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM responder to crash and disrupt authentication services.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat OpenShift Container Platform 4 Product | all versions | No fix yet |
| all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-476
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 14 | Red Hat sssd: out-of-bounds read | Medium4.0 | No fix yet |
| Sep 14 | Red Hat sssd. A local unprivileged user: denial of service | Medium4.0 | No fix yet |
| Sep 14 | Red Hat GIMP.: out-of-bounds write | High7.8 | No fix yet |
| Sep 14 | Red Hat sssd NSS responder: out-of-bounds read | Medium4.0 | No fix yet |
| Sep 14 | Red Hat GIMP: integer overflow | High7.8 | No fix yet |
| Sep 14 | Red Hat GIMP: heap buffer overflow | High7.8 | No fix yet |