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EUVD-2022-7455Published

Wasmtime is a standalone runtime for WebAssembly. Prior to versions 2.0.2 and 1.0.2, there is a bug in Wasmtime's implementation of its pooling instance allocator where when a linear memory is reused for another instance the initial heap sn…

Exact source revision recorded 5 Nov 2026 23:04:01 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2022-7455

Published

Wasmtime is a standalone runtime for WebAssembly. Prior to versions 2.0.2 and 1.0.2, there is a bug in Wasmtime's implementation of its pooling instance allocator where when a linear memory is reused for another instance the initial heap snapshot of the prior instance can be visible, erroneously to the next instance. This bug has been patched and users should upgrade to Wasmtime 2.0.2 and 1.0.2. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Nov 10, 2022, 12:00:00 AM

dateUpdated: May 2, 2025, 12:51:28 PM

Source published
Nov 10, 2022, 12:00:00 AM (timezone not stated)
Source modified
May 2, 2025, 12:51:28 PM (timezone not stated)
Observed here
5 Nov 2026 23:04:01 UTC
Source terms
ENISA EUVD · source terms and attribution apply

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: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

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Sources read 10 Nov 11:34 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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