CVE-2026-115893

01/תיאור (מקור, אנגלית)

Wasmtime is a runtime for WebAssembly. Prior to 36.0.19, 48.0.7, and 49.0.4, the Cranelift compiler backend on aarch64 can compile a Wasm br_table instruction with more than approximately 256,000 targets so that it has an incorrect conditional branch target. The branch can then jump to arbitrary other code at a user-controlled offset, allowing a user-controlled Wasm module to escape the sandbox on aarch64 engines using the default Cranelift backend. This issue is fixed in versions 36.0.19, 48.0.7, and 49.0.4.

02/קישורים10

• github.com/bytecodealliance/wasmtime/commit/222ff3a65dab9aa701‮…
• github.com/bytecodealliance/wasmtime/commit/994549891c8a706cb4‮…
• github.com/bytecodealliance/wasmtime/commit/e61df1b454be9313d6‮…
• github.com/bytecodealliance/wasmtime/commit/f517bd6e890c7c1291‮…
• github.com/bytecodealliance/wasmtime/pull/14818
• github.com/bytecodealliance/wasmtime/pull/14819
• github.com/bytecodealliance/wasmtime/pull/14820
• github.com/bytecodealliance/wasmtime/pull/14826
• github.com/bytecodealliance/wasmtime/releases/tag/v36.0.19
• github.com/bytecodealliance/wasmtime/releases/tag/v48.0.7