Heap-Based Buffer Overflow in OpenSCAP Product by Red Hat
CVE-2026-122056

5.9MEDIUM

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:
9 November 2026

What is CVE-2026-122056?

A vulnerability has been identified in the OpenSCAP product whereby a heap-based buffer overflow may occur during the processing of specially crafted Extensible Configuration Checklist Description Format (XCCDF) documents. This flaw can be triggered when using the sds-compose option, potentially allowing an attacker to corrupt memory. Such exploitation could lead to application crashes and result in a denial of service, effectively impacting the functionality of affected systems.

References

https://access.redhat.com/security/cve/CVE-2026-122056
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2567100
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.