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RUSTSEC-2026-0397Published

`OutBuffer::around_pos` exposes uninitialized memory

Exact source revision recorded 26 Oct 2026 14:35:44 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

osv · RUSTSEC-2026-0397

Published

`OutBuffer::around_pos` accepted a position past the initialized length of a `Vec<u8>`. The next streaming call then marked everything before the position as initialized, so safe code could read stale heap memory between the vector's previous length and that position. The flaw was corrected by zero-filling that gap.

Source published
16 Oct 2026 12:00:00 UTC
Source modified
26 Oct 2026 14:00:05 UTC
Observed here
26 Oct 2026 14:35:44 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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