Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, On x86-64 platforms with SSE3 disabled Wasmtime's compilation of the f64x2.splat WebAssembly instruction with Cranelift may load 8 more bytes than is necess…
Exact source revision recorded 1 Nov 2026 06:07:45 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-21023
PublishedWasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, On x86-64 platforms with SSE3 disabled Wasmtime's compilation of the f64x2.splat WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are disabled this can result in a uncaught segfault due to loading from unmapped guard pages. With guard pages disabled it's possible for out-of-sandbox data to be loaded, but this data is not visible to WebAssembly guests. This vulnerability is fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1.
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: Apr 9, 2026, 6:38:16 PM
dateUpdated: Apr 13, 2026, 3:38:40 PM
2 related source bulletins · separate from aliases
SUSE-SU-2026:21789-1: Security update for tree-sitter
CVE-2026-34941 · CVE-2026-34942 · CVE-2026-34943 · CVE-2026-34944 · CVE-2026-34945 · CVE-2026-34946 · CVE-2026-34987 · CVE-2026-34988 · CVE-2026-35186 · CVE-2026-35195
openSUSE-SU-2026:20749-1: Security update for tree-sitter
CVE-2026-34941 · CVE-2026-34942 · CVE-2026-34943 · CVE-2026-34944 · CVE-2026-34945 · CVE-2026-34946 · CVE-2026-34987 · CVE-2026-34988 · CVE-2026-35186 · CVE-2026-35195
- Source published
- Apr 9, 2026, 6:38:16 PM (timezone not stated)
- Source modified
- Apr 13, 2026, 3:38:40 PM (timezone not stated)
- Observed here
- 1 Nov 2026 06:07:45 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 4.0 · 4.1 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N