Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via realloc

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

CVE-2026-119141 · Microsoft / collected KEV context

EUVD-2026-113208

GHSA-7w3v-6qhp-7c4h

RUSTSEC-2026-0356

GHSA-7v24-42x9-pxf7

cve-program · CVE-2026-119141

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7v24-42x9-pxf7
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-realloc

euvd · EUVD-2026-113208

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7v24-42x9-pxf7
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-realloc

nvd · CVE-2026-119141

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7v24-42x9-pxf7
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-realloc

osv · RUSTSEC-2026-0356

• https://crates.io/crates/wasmtime
• https://rustsec.org/advisories/RUSTSEC-2026-0356.html
• https://github.com/bytecodealliance/wasmtime/pull/14739

• Panic on erroneous call-to-host from guest realloc call · Advisory content revised · 30 Oct 2026
• Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via realloc · Newly collected advisory · 29 Oct 2026