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{"bugzilla": {"description": "bandit: Bandit: Denial of Service via oversized HTTP/2 frames", "id": "2464591", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464591"}, "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 bandit. An unauthenticated remote attacker can exploit a vulnerability in the HTTP/2 frame deserialization process by sending oversized HTTP/2 frames. This allows the attacker to force the server to buffer excessive amounts of memory, leading to memory exhaustion and a denial of service (DoS) condition."], "name": "CVE-2026-42788", "public_date": "2026-05-01T20:34:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-42788\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-42788\nhttps://cna.erlef.org/cves/CVE-2026-42788.html\nhttps://github.com/mtrudel/bandit/commit/1e8e55966da9129016b73d32f0e1df4630e3b463\nhttps://github.com/mtrudel/bandit/security/advisories/GHSA-q6v9-r226-v65f\nhttps://osv.dev/vulnerability/EEF-CVE-2026-42788"], "statement": "This IMPORTANT DoS vulnerability in Bandit's HTTP/2 implementation allows unauthenticated memory exhaustion by sending oversized frames. The size validation occurs after buffering, bypassing the negotiated max_frame_size setting. Impact is high availability loss through memory pressure. Affects Bandit versions 0.3.6 to before 1.11.0.", "threat_severity": "Important"}

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