CVE-2026-100353

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{"affected": [{"affectedData": [{"product": "kin-openapi", "vendor": "getkin", "versions": [{"status": "affected", "version": ">= 0.136.0, < 0.149.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.149.0, three openapi3filter decoder paths that were missed by the fix for GHSA-p6wj-qrr4-pgh5 lack a nil-items guard for legal OpenAPI 3.1 array schemas. An unauthenticated remote client can trigger a deterministic nil-pointer panic through an array query parameter, a deepObject query parameter containing an array property, or an application/x-www-form-urlencoded request body whose array property appears inside an allOf, anyOf, or oneOf subschema. The query and composed-body paths reach urlValuesDecoder.parseArray, while the deepObject path reaches buildResObj, and all pass a nil items schema into code that dereferences it. This issue is fixed in version 0.149.0."}], "id": "CVE-2026-100353", "lastModified": "2026-10-29T14:17:40.677", "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-2026-100353", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T13:41:25.670414Z", "version": "2.0.3"}}]}, "published": "2026-10-15T17:17:07.627", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/getkin/kin-openapi/commit/9814d1f2b212f3508bf52296aa9e248b2122a5a9"}, {"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-vrcc-3ch7-hppw"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-vrcc-3ch7-hppw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "github.com/getkin/kin-openapi: kin-openapi: Denial of Service via nil-pointer dereference in request decoding", "id": "2553592", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553592"}, "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-476", "details": ["A flaw was found in kin-openapi. An unauthenticated remote attacker can cause a Denial of Service (DoS) by sending specially crafted HTTP requests containing specific array query parameters or form-encoded data. Because the request decoder fails to properly validate certain array schemas before accessing them, processing these requests triggers an unhandled crash."], "name": "CVE-2026-100353", "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": "2026-10-15T16:03:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-100353\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100353\nhttps://github.com/getkin/kin-openapi/commit/9814d1f2b212f3508bf52296aa9e248b2122a5a9\nhttps://github.com/getkin/kin-openapi/releases/tag/v0.149.0\nhttps://github.com/getkin/kin-openapi/security/advisories/GHSA-vrcc-3ch7-hppw"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.136.0,0.149.0)"}}], "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": "2026-10-16T20:15:13.894807+00:00", "updated": "2026-10-23T13:00:16.713272+00:00", "vendors": ["getkin", "getkin$PRODUCT$kin-openapi"]}