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RUSTSEC-2026-0258Published

h2 unbounded empty DATA frames

Exact source revision recorded 24 Oct 2026 13:19:54 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

osv · RUSTSEC-2026-0258

Published

The h2 crate, used internally by hyper, had a flaw that would accept and queue empty DATA frames without limit. If streams were not actively drained, this could lead to unbounded memory usage, or a panic if the length overflows. Low severity. Patched in v0.4.16.

Source published
17 Aug 2026 12:00:00 UTC
Source modified
12 Oct 2026 18:00:10 UTC
Observed here
24 Oct 2026 13:19:54 UTC
Source terms
OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.

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Sources read 10 Nov 09:28 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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