Zstandard v1.5.7

{
  "id": "85446a8b486bbcd47cd305953d457851757d02d597f2156b4a985e51fb864190",
  "url": "https://github.com/facebook/zstd/releases/tag/v1.5.7",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "Zstandard v1.5.7",
    "summary": "Zstandard v1.5.7 fixes a rare compression issue in 32-bit mode that can occur during long-lasting sessions with a reused compression context. The release recommends updating libzstd users operating in 32-bit mode.",
    "evidence": "v1.5.7 resolves a long standing and very rare compression issue in 32-bit mode, which can be triggered during long-lasting sessions (same ZSTD_CCtx* being continuously reused).",
    "products": [
      {
        "name": {
          "value": "Zstandard",
          "evidence": "Zstandard v1.5.7"
        },
        "prerequisites": [
          {
            "value": "32-bit mode",
            "evidence": "if you use libzstd in 32-bit mode, this update is highly recommended"
          },
          {
            "value": "long-lasting sessions (same ZSTD_CCtx* being continuously reused)",
            "evidence": "which can be triggered during long-lasting sessions (same ZSTD_CCtx* being continuously reused)"
          }
        ],
        "fixed_versions": [
          {
            "value": "v1.5.7",
            "evidence": "Zstandard v1.5.7"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-facebook-zstd",
  "document_id": 21101,
  "published_at": "2025-02-28T20:07:30+00:00"
}