DEBIAN-CVE-2026-35186

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler backend contains a bug where translating the table.grow operator causes the result to be incorrectly typed. For 32-bit tables this means that the result of the operator, internally i...

CVE-2026-34945

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a bug where a 64-bit table, part of the memory64 proposal of WebAssembly, incorrectly translated the table.size instruction. This bug could lead to disclosing data on the...

UBUNTU-CVE-2026-34987

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime with its Winch baseline non-default compiler backend may allow properly constructed guest Wasm to access host memory outside of its linear-memory sandbox. This vulnerability requires use of the Winch...

UBUNTU-CVE-2026-34945

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a bug where a 64-bit table, part of the memory64 proposal of WebAssembly, incorrectly translated the table.size instruction. This bug could lead to disclosing data on the...

CVE-2026-34987

Wasmtime (WebAssembly runtime) with the Winch baseline compiler backend on aarch64 is vulnerable. From 25.0.0 up to but not including 36.0.7, 42.0.2, and 43.0.1, using -Ccompiler=winch may allow a guest Wasm to access host memory outside the linear-memory sandbox. The aarch64 variant has an obser...

CVE-2026-34987 Wasmtime with Winch compiler backend on aarch64 may allow a sandbox-escaping memory access

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime with its Winch baseline non-default compiler backend may allow properly constructed guest Wasm to access host memory outside of its linear-memory sandbox. This vulnerability requires use of the Winch...

CVE-2026-34946

Summary: Wasmtime’s Winch-based code path can panic the host when compiling the WebAssembly table.fill instruction. From 25.0.0 up to but not including 36.0.7, 42.0.2, and 43.0.1, a historical refactor changed how compiled code references table elements, but Winch paths were not updated, leading ...

CVE-2026-34946 Wasmtime's host panics when Winch compiler executes `table.fill`

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a vulnerability where the compilation of the table.fill instruction can result in a host panic. This means that a valid guest can be compiled with Winch, on any architecture...

CVE-2026-34946 Wasmtime's host panics when Winch compiler executes `table.fill`

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a vulnerability where the compilation of the table.fill instruction can result in a host panic. This means that a valid guest can be compiled with Winch, on any architecture...

CVE-2026-34945

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a bug where a 64-bit table, part of the memory64 proposal of WebAssembly, incorrectly translated the table.size instruction. This bug could lead to disclosing data on the...

CVE-2026-34945 Wasmtime leaks host data with 64-bit tables and Winch

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a bug where a 64-bit table, part of the memory64 proposal of WebAssembly, incorrectly translated the table.size instruction. This bug could lead to disclosing data on the...

RUSTSEC-2026-0089 Host panic when Winch compiler executes `table.fill`

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q49f-xg75-m9xw For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0094 Improperly masked return value from `table.grow` with Winch compiler backend

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-f984-pcp8-v2p7 For more information see the GitHub-hosted security advisory...

Host panic when Winch compiler executes `table.fill`

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q49f-xg75-m9xw For more information see the GitHub-hosted security advisory...

golang: cmd/compile: possible memory corruption after bound check elimination

A flaw was found in the cmd/compile package in the Go standard library. The compiler fails to correctly check for integer overflow or underflow in arithmetic operations involving loop induction variables. As a result, the compiler allows invalid memory indexing to occur at runtime, potentially...

golang: cmd/compile: no-op interface conversion bypasses overlap checking

A flaw was found in the cmd/compile package in the Go standard library. A no-op interface conversion prevented the compiler from correctly identifying non-overlapping memory moves. As a result, the compiler allows unsafe memory move operations to occur at runtime, potentially causing data...

SUSE-RU-2026:1228-1 Recommended update for shadow

This update for shadow fixes the following issues: shadow is updated to 4.17.2 to bring lots of features and bug fixes. - util-linux-2.41 introduced new variable: LOGINENVSAFELIST. Recognize it and update dependencies. - Set SYSUID,GIDMIN to 201: After repeated similar requests to change the ID...

CVE-2026-34946: Always-Incorrect Control Flow Implementation

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a vulnerability where the compilation of the table.fill instruction can result in a host panic. This means that a valid guest can be compiled with Winch, on any architecture...

CVE-2026-34945: Incorrect Conversion between Numeric Types

Wasmtime is a runtime for WebAssembly. From 25.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Winch compiler contains a bug where a 64-bit table, part of the memory64 proposal of WebAssembly, incorrectly translated the table.size instruction. This bug could lead to disclosing data on the...

WasmTime security vulnerability

Wasmtime is a lightweight WebAssembly runtime open source by the Bytecode Alliance. Versions of Wastime prior to 25.0.0, 36.0.7, 42.0.2, and 43.0.1 contained security vulnerabilities. These vulnerabilities stemmed from the Winch compiler incorrectly translating the table.size instruction, which i...