CVE-2026-102265

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{"bugzilla": {"description": "pyjwt: pyjwt: Denial of Service via deeply nested token headers", "id": "2542703", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2542703"}, "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. An unauthenticated remote attacker could trigger a Denial of Service (DoS) condition by supplying a specially crafted JSON Web Token (JWT) with deeply nested headers during decoding. Processing these nested structures causes an uncaught recursion error that bypasses standard error handling, leading to request-level failures and potential application crashes."], "name": "CVE-2026-102265", "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": "2026-09-28T20:48:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-102265\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-102265\nhttps://github.com/jpadilla/pyjwt/commit/06573692ebcdec8831c3927513b3e87c31fbbb62\nhttps://github.com/jpadilla/pyjwt/releases/tag/2.14.0\nhttps://github.com/jpadilla/pyjwt/security/advisories/GHSA-8wjv-2p76-3863"], "threat_severity": "Moderate"}

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