CVE-2026-122056 (GCVE-0-2026-122056)

Vulnerability from cvelistv5 – Published: 2026-11-09 20:33 – Updated: 2026-11-09 20:33
VLAI
Title
Openscap: one-byte heap buffer overflow in sds-compose may lead to denial-of-service
Summary
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).
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE
Assigner
redhat CNA
References
URL Tags
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
Impacted products
Date Public
2026-11-09 19:47
Show details on NVD website
To clipboard 

{
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          "cpes": [
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          "packageName": "openscap",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          "cpes": [
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          "product": "Red Hat Enterprise Linux 8",
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          "cpes": [
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          "cpes": [
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
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              "description": "Out-of-bounds Write",
              "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2026-11-09T20:33:16.401Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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          "value": "Reported to Red Hat."
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          "time": "2026-11-09T19:47:01.452Z",
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      "workarounds": [
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          "lang": "en",
          "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
        }
      ],
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      },
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    }
  },
  "cveMetadata": {
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    "assignerShortName": "redhat",
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    "datePublished": "2026-11-09T20:33:16.401Z",
    "dateReserved": "2026-11-04T16:34:16.396Z",
    "dateUpdated": "2026-11-09T20:33:16.401Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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