CVE-2026-59990

{"id": "CVE-2026-59990", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59990", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-23T19:27:50.740766Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "typelevel", "product": "jawn", "versions": [{"status": "affected", "version": "< 1.7.0"}]}]}], "published": "2026-09-23T19:17:32.637", "references": [{"url": "https://github.com/typelevel/jawn/commit/191cb3a44e77f1afab439ee636bf66bdf3c54a04", "source": "security-advisories@github.com"}, {"url": "https://github.com/typelevel/jawn/commit/6219666641f9408498f85868f835e17bd8a72fed", "source": "security-advisories@github.com"}, {"url": "https://github.com/typelevel/jawn/commit/93ac93e9c992c11b4c03d5455d8551f9fb24da1b", "source": "security-advisories@github.com"}, {"url": "https://github.com/typelevel/jawn/commit/f6ace7e0db715de1a8c4618bed9378333a5c2214", "source": "security-advisories@github.com"}, {"url": "https://github.com/typelevel/jawn/releases/tag/v1.7.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/typelevel/jawn/security/advisories/GHSA-cc4v-rvgp-2pf3", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Jawn is an open source JSON parser. Prior to 1.7.0, Jawn parse methods accept arbitrarily deep JSON array and object nesting without a depth limit, allowing a remote attacker who can submit untrusted JSON to grow parser contexts until the JVM heap is exhausted. The resulting java.lang.OutOfMemoryError is a fatal Scala error that is not ordinarily handled by scala.util.Try or cats.effect.IO, causing denial of service. This issue is fixed in version 1.7.0."}], "lastModified": "2026-09-30T17:32:07.107", "sourceIdentifier": "security-advisories@github.com"}