Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-119133 · Microsoft / collected KEV context

EUVD-2026-113200

GHSA-9283-62cg-q26h

RUSTSEC-2026-0364

GHSA-p79w-pv2r-29qp

cve-program · CVE-2026-119133

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp
• https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags

euvd · EUVD-2026-113200

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp
• https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags

nvd · CVE-2026-119133

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp
• https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags

osv · RUSTSEC-2026-0364

• https://crates.io/crates/wasmtime
• https://rustsec.org/advisories/RUSTSEC-2026-0364.html
• https://github.com/bytecodealliance/wasmtime/pull/14731

• Exception tags can cause host data structures to be unaligned · Advisory content revised · 30 Oct 2026
• Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags · Newly collected advisory · 29 Oct 2026