Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/354929?format=api",
    "vulnerability_id": "VCID-xfew-wxwz-yka3",
    "summary": "Linux kernel double free in Xen privcmd driver",
    "aliases": [
        {
            "alias": "CVE-2026-31787"
        },
        {
            "alias": "XSA-487"
        }
    ],
    "fixed_packages": [
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            "purl": "pkg:apk/alpine/xen@0?arch=x86&distroversion=v3.21&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/427308?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=armv7&distroversion=v3.22&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
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            "is_vulnerable": false,
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            "is_vulnerable": false,
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        },
        {
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485145?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=aarch64&distroversion=v3.23&reponame=main",
            "is_vulnerable": false,
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        },
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            "url": "http://public2.vulnerablecode.io/api/packages/485153?format=api",
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            "is_vulnerable": false,
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/483451?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/490531?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485146?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=armhf&distroversion=v3.23&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=armhf&distroversion=v3.23&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/427312?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=s390x&distroversion=v3.22&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=s390x&distroversion=v3.22&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/490534?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=s390x&distroversion=edge&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=s390x&distroversion=edge&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485147?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=armv7&distroversion=v3.23&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=armv7&distroversion=v3.23&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/427313?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=x86&distroversion=v3.22&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=x86&distroversion=v3.22&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/427306?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=aarch64&distroversion=v3.22&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=aarch64&distroversion=v3.22&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/490528?format=api",
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            "is_vulnerable": false,
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485148?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/485149?format=api",
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            "affected_by_vulnerabilities": [],
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/490532?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/483453?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485152?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=x86&distroversion=v3.23&reponame=main"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/427309?format=api",
            "purl": "pkg:apk/alpine/xen@0?arch=loongarch64&distroversion=v3.22&reponame=main",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/485150?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=riscv64&distroversion=v3.23&reponame=main"
        },
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            "url": "http://public2.vulnerablecode.io/api/packages/485151?format=api",
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            "affected_by_vulnerabilities": [],
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/427311?format=api",
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/483457?format=api",
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/490530?format=api",
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    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-31787.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "7.0",
                    "scoring_system": "cvssv3",
                    "scoring_elements": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
                }
            ],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-31787.json"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-31787",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-31787"
        },
        {
            "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.5",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                }
            ],
            "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464092",
            "reference_id": "2464092",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464092"
        },
        {
            "reference_url": "https://xenbits.xen.org/xsa/advisory-487.html",
            "reference_id": "XSA-487",
            "reference_type": "",
            "scores": [],
            "url": "https://xenbits.xen.org/xsa/advisory-487.html"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 763,
            "name": "Release of Invalid Pointer or Reference",
            "description": "The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly."
        }
    ],
    "exploits": [],
    "severity_range_score": "5.5 - 7.0",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-xfew-wxwz-yka3"
}