{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91129", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-14T19:36:48.844Z", "datePublished": "2026-09-22T19:05:15.559Z", "dateUpdated": "2026-09-22T19:05:15.559Z"}, "containers": {"cna": {"title": "Home Assistant: mDNS Server-Side Request Forgery", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/home-assistant/core/security/advisories/GHSA-4ghv-53cq-7wp3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/home-assistant/core/security/advisories/GHSA-4ghv-53cq-7wp3"}, {"name": "https://github.com/home-assistant/core/pull/162941", "tags": ["x_refsource_MISC"], "url": "https://github.com/home-assistant/core/pull/162941"}, {"name": "https://github.com/home-assistant/core/commit/0f3c7ca2772b605c0f3c09c88f35e527ea6ea560", "tags": ["x_refsource_MISC"], "url": "https://github.com/home-assistant/core/commit/0f3c7ca2772b605c0f3c09c88f35e527ea6ea560"}, {"name": "https://github.com/home-assistant/core/commit/815c708d19aa0c7f59f9ee318b613a5e481a42b3", "tags": ["x_refsource_MISC"], "url": "https://github.com/home-assistant/core/commit/815c708d19aa0c7f59f9ee318b613a5e481a42b3"}, {"name": "https://github.com/home-assistant/core/releases/tag/2026.2.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/home-assistant/core/releases/tag/2026.2.3"}], "affected": [{"vendor": "home-assistant", "product": "core", "versions": [{"version": "< 2026.2.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-22T19:05:15.559Z"}, "descriptions": [{"lang": "en", "value": "Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.2.3, the IPP integration automatically processed unauthenticated _ipp._tcp.local mDNS announcements in homeassistant/components/ipp/config_flow.py, where async_step_zeroconf passed attacker-controlled host, port, and base_path values to validate_input for printer metadata retrieval. Because the shared HTTP client followed attacker-controlled cross-origin redirects without blocking loopback targets, a local-network attacker could redirect the request to 127.0.0.1 or another internal service without user interaction or prior IPP configuration. This issue is fixed in version 2026.2.3."}], "source": {"advisory": "GHSA-4ghv-53cq-7wp3", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "core", "vendor": "home-assistant", "versions": [{"status": "affected", "version": "< 2026.2.3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.2.3, the IPP integration automatically processed unauthenticated _ipp._tcp.local mDNS announcements in homeassistant/components/ipp/config_flow.py, where async_step_zeroconf passed attacker-controlled host, port, and base_path values to validate_input for printer metadata retrieval. Because the shared HTTP client followed attacker-controlled cross-origin redirects without blocking loopback targets, a local-network attacker could redirect the request to 127.0.0.1 or another internal service without user interaction or prior IPP configuration. This issue is fixed in version 2026.2.3."}], "id": "CVE-2026-91129", "lastModified": "2026-09-22T19:16:56.433", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-22T19:16:56.433", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/home-assistant/core/commit/0f3c7ca2772b605c0f3c09c88f35e527ea6ea560"}, {"source": "security-advisories@github.com", "url": "https://github.com/home-assistant/core/commit/815c708d19aa0c7f59f9ee318b613a5e481a42b3"}, {"source": "security-advisories@github.com", "url": "https://github.com/home-assistant/core/pull/162941"}, {"source": "security-advisories@github.com", "url": "https://github.com/home-assistant/core/releases/tag/2026.2.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/home-assistant/core/security/advisories/GHSA-4ghv-53cq-7wp3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

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