cvedb.io
CVE-2026-49754
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-06-02T16:16:44.930 · Last modified 2026-06-17T10:55:43.723

Summary

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client (HTTP/2 CONTINUATION flood). When Mint's HTTP/2 receive path observes a HEADERS frame without the END_HEADERS flag, the unparsed header-block fragment is parked in conn.headers_being_processed, and every subsequent CONTINUATION frame on that stream is appended to the accumulator. Nothing in the receive path caps the accumulator: there is no per-stream size limit, no CONTINUATION frame-count limit, and max_header_list_size is only enforced on outgoing requests, never on inbound header blocks (its default is :infinity). A malicious or compromised HTTP/2 server can stream an endless sequence of CONTINUATION frames (each up to the

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.