CVE-2026-28451

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Attackers can influence tool calls through direct manipulation or prompt injection to trigger requests to internal services and re-upload responses as Feishu media."}, {"lang": "es", "value": "Las versiones de OpenClaw anteriores a 2026.2.14 contienen vulnerabilidades de falsificaci\u00f3n de petici\u00f3n del lado del servidor en la extensi\u00f3n de Feishu que permiten a los atacantes obtener URLs remotas controladas por el atacante sin protecciones SSRF a trav\u00e9s de la funci\u00f3n sendMediaFeishu y el procesamiento de im\u00e1genes markdown. Los atacantes pueden influir en las llamadas a herramientas mediante manipulaci\u00f3n directa o inyecci\u00f3n de prompts para activar peticiones a servicios internos y volver a subir las respuestas como medios de Feishu."}], "id": "CVE-2026-28451", "lastModified": "2026-06-17T10:28:39.900", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.7, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28451", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-09T16:51:33.129646Z", "version": "2.0.3"}}]}, "published": "2026-03-05T22:16:17.210", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/5b4121d6011a48c71e747e3c18197f180b872c5d"}, {"source": "disclosure@vulncheck.com", "tags": ["Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-x22m-j5qq-j49m"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-ssrf-via-feishu-extension-media-fetching"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2.14)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenClaw", "source": "cna", "vendor": "OpenClaw"}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-04-16T12:04:58.684486+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.2.14 or later to eliminate the SSRF functionality.", "If an upgrade is not immediately possible, disable the Feishu extension or block the sendMediaFeishu endpoint to prevent remote URL fetching.", "Implement network controls such as an outbound firewall or proxy to limit the application\u2019s ability to reach internal IP ranges and block malicious external URLs."], "summary": {"action": "Apply Patch", "impact": "Server\u2011Side Request Forgery"}, "threat_synthesis": {"affected_systems": "OpenClaw products, specifically any installation running a version before 2026.2.14. The affected code resides in the Feishu extension media fetching functionality and in markdown image processing. Users of the OpenClaw application that rely on the Feishu integration are exposed to this flaw.", "description_and_impact": "The vulnerability exists in the Feishu extension of OpenClaw and allows attackers to direct the server to fetch arbitrary remote URLs via the sendMediaFeishu function or markdown image handling. By doing so, an attacker can retrieve content from internal services, upload that content back as Feishu media, or manipulate tool calls or prompts to trigger further requests. The result is potential exposure of internal network resources and data, and the ability to perform unauthorized actions as the application server.", "risk_and_exploitability": "The CVSS score of 6.3 indicates a severity. The EPSS score of less than 1% suggests the probability of exploitation is very low at present. This vulnerability is not listed in CISA's KEV catalog. Based on the description, the likely attack vector is an authenticated or low\u2011privilege user submitting a Feishu media request or markdown content that triggers the server to perform the malicious request. Successful exploitation requires that the attacker can send the relevant data to the application, after which the server will reach out to the target URL internally or externally, fetch the response, and optionally upload it back as media."}}}}, "created": "2026-03-06T15:00:32.871573+00:00", "updated": "2026-04-16T12:15:35.084474+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}