CVE-2026-86983

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{"affected": [{"affectedData": [{"product": "swift-crypto", "vendor": "Apple", "versions": [{"lessThan": "5.0.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A remote attacker may be able to terminate a process that passes attacker-controlled input to the P-384 VOPRF API without bounding its length. This vulnerability is addressed in swift-crypto version 5.0.3."}], "id": "CVE-2026-86983", "lastModified": "2026-11-04T17:17:37.887", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-86983", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-04T16:26:51.460834Z", "version": "2.0.3"}}]}, "published": "2026-10-28T23:17:11.260", "references": [{"source": "product-security@apple.com", "url": "https://github.com/apple/swift-crypto/security/advisories/GHSA-jwv7-rv4f-rff2"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "swift-crypto: swift-crypto: Denial of Service via unbounded input to the P-384 VOPRF API", "id": "2563238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2563238"}, "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-770", "details": ["A flaw was found in swift-crypto. A remote attacker can trigger a Denial of Service (DoS) by providing excessively long or unbounded input to an application utilizing the P-384 Verifiable Oblivious Pseudorandom Function (VOPRF) interface. Because the interface does not adequately restrict input length, processing the untrusted data can cause the application process to terminate unexpectedly."], "mitigation": {"lang": "en:us", "value": "Enforce strict payload length limits and input validation at the application boundary prior to passing untrusted data to the P-384 VOPRF interface. Where direct code changes are not immediately viable, deploy an API gateway or reverse proxy to restrict maximum request body sizes."}, "name": "CVE-2026-86983", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "swift-lang", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-28T23:01:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-86983\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-86983\nhttps://github.com/apple/swift-crypto/security/advisories/GHSA-jwv7-rv4f-rff2"], "statement": "A flaw was found in the swift-crypto package's P-384 VOPRF API implementation. A remote attacker can pass excessively long or unbounded input to an application utilizing this interface, triggering unexpected process termination and resulting in a denial of service.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,5.0.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "swift-crypto", "source": "cna", "vendor": "Apple"}, "product": "swift-crypto", "vendor": "apple"}], "created": "2026-10-29T00:30:14.029768+00:00", "updated": "2026-11-04T19:15:14.691356+00:00", "vendors": ["apple", "apple$PRODUCT$swift-crypto"]}