CVE-2026-101918

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{"bugzilla": {"description": "pyjwt: PyJWT: Denial of Service via deeply nested JSON token payload", "id": "2542668", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2542668"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-248", "details": ["A flaw was found in PyJWT. When processing a JSON Web Token (JWT) prior to signature verification, the parser fails to properly handle deeply nested data, leading to an unhandled recursion error. A remote unauthenticated attacker could exploit this flaw by submitting a specially crafted token, causing the application to raise an unexpected server exception and resulting in a Denial of Service (DoS)."], "name": "CVE-2026-101918", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "jaeger", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "llvm21", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "swift-lang", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-28T20:11:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-101918\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-101918\nhttps://github.com/jpadilla/pyjwt/commit/5fde08a6cf906aa7698de2d6391d88b73006b17b\nhttps://github.com/jpadilla/pyjwt/releases/tag/2.15.0\nhttps://github.com/jpadilla/pyjwt/security/advisories/GHSA-42vr-xj54-vc7v"], "threat_severity": "Moderate"}

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