Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/50573?format=api",
    "vulnerability_id": "VCID-3f9z-cez9-ykec",
    "summary": "OpenClaw's Nextcloud Talk webhook replay could trigger duplicate inbound processing\nWhen Nextcloud Talk webhook signing was valid, replayed requests could be accepted without durable replay suppression, allowing duplicate inbound processing after replay-window expiry or process restart.",
    "aliases": [
        {
            "alias": "CVE-2026-28449"
        },
        {
            "alias": "GHSA-r9q5-c7qc-p26w"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/74377?format=api",
            "purl": "pkg:npm/openclaw@2026.2.25",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/openclaw@2026.2.25"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://github.com/openclaw/openclaw",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/openclaw/openclaw"
        },
        {
            "reference_url": "https://github.com/openclaw/openclaw/commit/d512163d686ad6741783e7119ddb3437f493dbbc",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/openclaw/openclaw/commit/d512163d686ad6741783e7119ddb3437f493dbbc"
        },
        {
            "reference_url": "https://www.vulncheck.com/advisories/openclaw-webhook-replay-attack-via-missing-durable-replay-suppression",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://www.vulncheck.com/advisories/openclaw-webhook-replay-attack-via-missing-durable-replay-suppression"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28449",
            "reference_id": "CVE-2026-28449",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28449"
        },
        {
            "reference_url": "https://github.com/advisories/GHSA-r9q5-c7qc-p26w",
            "reference_id": "GHSA-r9q5-c7qc-p26w",
            "reference_type": "",
            "scores": [],
            "url": "https://github.com/advisories/GHSA-r9q5-c7qc-p26w"
        },
        {
            "reference_url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-r9q5-c7qc-p26w",
            "reference_id": "GHSA-r9q5-c7qc-p26w",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-r9q5-c7qc-p26w"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 294,
            "name": "Authentication Bypass by Capture-replay",
            "description": "A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes)."
        },
        {
            "cwe_id": 937,
            "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."
        },
        {
            "cwe_id": 1035,
            "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."
        }
    ],
    "exploits": [],
    "severity_range_score": "4.0 - 6.9",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-3f9z-cez9-ykec"
}