CVE-2026-100354

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-100354", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-25T19:19:54.697Z", "datePublished": "2026-10-15T16:02:00.566Z", "dateUpdated": "2026-10-15T18:31:51.798Z"}, "containers": {"cna": {"title": "kin-openapi: Uncontrolled Recursion on Circular allOf/anyOf/oneOf Schemas Causes Fatal Process Crash", "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf"}, {"name": "https://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff", "tags": ["x_refsource_MISC"], "url": "https://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff"}, {"name": "https://github.com/getkin/kin-openapi/releases/tag/v0.149.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/getkin/kin-openapi/releases/tag/v0.149.0"}], "affected": [{"vendor": "getkin", "product": "kin-openapi", "versions": [{"version": "< 0.149.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-15T16:02:00.566Z"}, "descriptions": [{"lang": "en", "value": "kin-openapi is a Go project for handling OpenAPI files. Prior to 0.149.0, runtime request, response, and direct schema validation lacks cycle detection when an allOf, anyOf, or oneOf chain refers back to an ancestor schema, even though loading and document validation accept the circular reference. A request or response that reaches the affected schema causes unbounded recursion in Schema.visitJSON or openapi3filter.decodeValue and exhausts the Go goroutine stack. The resulting fatal stack overflow cannot be caught with recover and terminates the entire process, including unrelated requests. This issue is fixed in version 0.149.0."}], "source": {"advisory": "GHSA-g8cf-rcjf-c8cf", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-15T18:31:31.817575Z", "id": "CVE-2026-100354", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T18:31:51.798Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-100354", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-15T18:31:31.817575Z"}}}], "references": [{"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T18:31:44.274Z"}}], "cna": {"title": "kin-openapi: Uncontrolled Recursion on Circular allOf/anyOf/oneOf Schemas Causes Fatal Process Crash", "source": {"advisory": "GHSA-g8cf-rcjf-c8cf", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "getkin", "product": "kin-openapi", "versions": [{"status": "affected", "version": "< 0.149.0"}]}], "references": [{"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf", "name": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff", "name": "https://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/getkin/kin-openapi/releases/tag/v0.149.0", "name": "https://github.com/getkin/kin-openapi/releases/tag/v0.149.0", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "kin-openapi is a Go project for handling OpenAPI files. Prior to 0.149.0, runtime request, response, and direct schema validation lacks cycle detection when an allOf, anyOf, or oneOf chain refers back to an ancestor schema, even though loading and document validation accept the circular reference. A request or response that reaches the affected schema causes unbounded recursion in Schema.visitJSON or openapi3filter.decodeValue and exhausts the Go goroutine stack. The resulting fatal stack overflow cannot be caught with recover and terminates the entire process, including unrelated requests. This issue is fixed in version 0.149.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-674", "description": "CWE-674: Uncontrolled Recursion"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-15T16:02:00.566Z"}}}, "cveMetadata": {"cveId": "CVE-2026-100354", "state": "PUBLISHED", "dateUpdated": "2026-10-15T18:31:51.798Z", "dateReserved": "2026-09-25T19:19:54.697Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-15T16:02:00.566Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "kin-openapi", "vendor": "getkin", "versions": [{"status": "affected", "version": "< 0.149.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "kin-openapi is a Go project for handling OpenAPI files. Prior to 0.149.0, runtime request, response, and direct schema validation lacks cycle detection when an allOf, anyOf, or oneOf chain refers back to an ancestor schema, even though loading and document validation accept the circular reference. A request or response that reaches the affected schema causes unbounded recursion in Schema.visitJSON or openapi3filter.decodeValue and exhausts the Go goroutine stack. The resulting fatal stack overflow cannot be caught with recover and terminates the entire process, including unrelated requests. This issue is fixed in version 0.149.0."}], "id": "CVE-2026-100354", "lastModified": "2026-10-15T19:17:12.943", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-100354", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T18:31:31.817575Z", "version": "2.0.3"}}]}, "published": "2026-10-15T17:17:07.780", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff"}, {"source": "security-advisories@github.com", "url": "https://github.com/getkin/kin-openapi/releases/tag/v0.149.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "github.com/getkin/kin-openapi: kin-openapi: Denial of Service via unbounded recursion during schema validation", "id": "2553590", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553590"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["A flaw was found in kin-openapi. The runtime schema validation lacks cycle detection when processing circular schema references. A remote attacker can exploit this vulnerability by submitting a request or response that triggers recursive validation, leading to unbounded recursion and stack exhaustion. This condition causes the entire application process to crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-100354", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "go-fdo-server", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana12.4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "hugo", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-15T16:02:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-100354\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100354\nhttps://github.com/getkin/kin-openapi/commit/9245cef66c840e27a08409a8a5cd0ee930c5bcff\nhttps://github.com/getkin/kin-openapi/releases/tag/v0.149.0\nhttps://github.com/getkin/kin-openapi/security/advisories/GHSA-g8cf-rcjf-c8cf"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.149.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "kin-openapi", "source": "cna", "vendor": "getkin"}, "product": "kin-openapi", "vendor": "getkin"}], "created": "2026-10-16T20:15:13.895024+00:00", "updated": "2026-10-23T13:00:16.717491+00:00", "vendors": ["getkin", "getkin$PRODUCT$kin-openapi"]}