Local Denial of Service Vulnerability in SSSD by Red Hat
CVE-2026-104037

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
6 October 2026

What is CVE-2026-104037?

A local attacker can exploit a flaw in SSSD by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This can lead to an integer underflow and an out-of-bounds memory read, ultimately crashing the responder process and resulting in a denial of service (DoS) event. The vulnerability poses a risk to system stability and availability.

References

https://access.redhat.com/security/cve/CVE-2026-104037
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479030
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Found by AISLE in partnership with Red Hat.
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