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h2 before 0.4.16 accepts and queues empty DATA frames without limit. If streams are not actively drained this can cause unbounded memory usage, or a panic if the length overflows. Low severity denial-of-service, published 2026-08-17, patched upstream in 0.4.16. RUSTSEC-2026-0258 / GHSA-q83h-524g-xf6h GHSA-q83h-524g-xf6h h2 is a transitive dependency via hyper. Applied with `cargo update -p h2 --precise 0.4.16`, so the lockfile moves h2 only and no other dependency is touched. This is what fails the Security Audit / Cargo Deny job on current CI runs.
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Updates the transitive
h2dependency to 0.4.16 to clear RUSTSEC-2026-0258, which currently fails the Security Audit / Cargo Deny job on every CI run in this repo.h2before 0.4.16 accepts and queues empty DATA frames without limit. If streams are not actively drained this can lead to unbounded memory usage, or a panic if the length overflows.h2arrives transitively throughhyper. Applied withcargo update -p h2 --precise 0.4.16, so onlyCargo.lockchanges and only theh2entry moves — no other dependency is touched and no manifest is edited.Note this repo also has CI jobs failing on
docker: command not foundon the self-hosted runners. That is a separate runner-provisioning issue and is not addressed here.