CVE-2026-10725 (GCVE-0-2026-10725)

Vulnerability from cvelistv5 – Published: 2026-06-06 09:14 – Updated: 2026-06-06 11:31
VLAI
Title
Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb
Summary
Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded. MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag.
Severity
No CVSS data available.
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
Impacted products
Vendor Product Version
CRUX Protocol::HTTP2 Affected: 0 , ≤ 1.12 (custom)
Create a notification for this product.
Show details on NVD website

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    "dateReserved": "2026-06-03T09:18:37.572Z",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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