{"api_version":"1","generated_at":"2026-11-12T06:44:07+00:00","cve":"CVE-2026-116591","urls":{"html":"https://cve.report/CVE-2026-116591","api":"https://cve.report/api/cve/CVE-2026-116591.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-116591","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-116591"},"summary":{"title":"compress zstd: Panic on two-block frames","description":"compress provides various compression algorithms. Prior to 1.20.2, the zstd DecodeAll and streaming decoder paths can panic when a crafted two-block frame reaches huff0.ReadTable with an FSE normalized count of 32768 that readNCount stores in int16 as -32768. The wrapped count allows buildDtable to retain stale fse.Scratch decode-table state from the prior block, and nextFast then derives an out-of-range state and indexes beyond the table instead of returning a decode error. 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Prior to 1.20.2, the zstd DecodeAll and streaming decoder paths can panic when a crafted two-block frame reaches huff0.ReadTable with an FSE normalized count of 32768 that readNCount stores in int16 as -32768. The wrapped count allows buildDtable to retain stale fse.Scratch decode-table state from the prior block, and nextFast then derives an out-of-range state and indexes beyond the table instead of returning a decode error. Both blocks are required to preserve and then reuse the stale state, allowing untrusted zstd input to crash an application. This issue is fixed in version 1.20.2.","Type":"Description","Title":"compress zstd: Panic on two-block frames"}]}}}