CVE-2026-122056
Openscap: one-byte heap buffer overflow in sds-compose may lead to denial-of-service
No exploitation reported by the sources we read.
- Published2026-11-09
- WeaknessCWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A flaw was found in OpenSCAP. A heap-based buffer overflow can occur when processing a specially crafted Extensible Configuration Checklist Description Format (XCCDF) document using the sds-compose option. An attacker could exploit this vulnerability to corrupt memory, resulting in an application crash and a Denial of Service (DoS).
Timeline
dates in UTC- 2026-11-0920:33CVE publishedCNA
Versions per branch
Products declared by the CNA
As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.
- Red Hat Enterprise Linux 10other versions: affected
package openscaphttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 6other versions: unknown
package openscaphttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 7other versions: affected
package openscaphttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 8other versions: affected
package openscaphttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 9other versions: affected
package openscaphttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Hardened Imagesother versions: affected
package openscaphttps://access.redhat.com/downloads/content/package-browser/
Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-09
Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-122056 yet.
Fix
No fix published by the sources we read yet. NVD record
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Metasploit modules
- none listed Metasploit Framework
Sources
Identifiers
- EUVD-2026-120416same flawENISA EUVD · LicenseRef-ENISA-legal-notice
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- Published
- 2026-11-09
Frequently asked questions
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