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CVE-2026-97200

8.2 high SSVC exploitation: none Published
NVD · CVE.org

Allocation of Resources Without Limits or Throttling vulnerability in hackney_conn in benoitc hackney allows a malicious HTTP server to exhaust client memory via an oversized or highly compressed response body. hackney:request/5 and hackney:body/1 return the whole response body, and nothing bounds how much the connection process buffers. Any server the client requests can trigger it. hackney_conn:read_full_body/2 and the HTTP/2 and HTTP/3 accumulators append every chunk until the body ends. With {auto_decompress, true} the buffered body is then inflated in one step with zlib:gunzip/1 or zlib:inflate/2, which return the whole output at once. This issue affects hackney: from 2.0.0-beta.1 before 4.9.0.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 6

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 15:35
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 16:59
  3. StatusReceived → PublishedNVD modified 2026-10-26 15:35
  4. StatusPublished → ReceivedNVD modified 2026-10-26 16:17
  5. StatusReceived → PublishedNVD modified 2026-10-26 13:49
  6. First seenCVSS 8.2NVD modified 2026-10-26 14:16

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 6