CVE-2026-44216
HIGH7.5EPSS 0.05%Panic when allocating a table exceeding the size of the host's address space
發布日:2026/5/7修改日:2026/5/19
描述
Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is allocated. This is possible with the WebAssembly memory64 proposal where tables can have sizes in the 64-bit range as opposed to the previous 32-bit range which would not overflow. The panic happens when attempting to create a very large table, such as when instantiating a WebAssembly module or component. This vulnerability is fixed in 36.0.8, 43.0.2, and 44.0.1.
受影響套件(3)
- crates.io/wasmtime>= 30.0.0, < 36.0.8
- crates.io/wasmtime>= 30.0.0, < 36.0.8, >= 37.0.0, < 43.0.2, >= 44.0.0, < 44.0.1
- Debian/rust-wasmtimefrom 0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-44216
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-44216
- PATCHhttps://crates.io/crates/wasmtime
- PATCHhttps://github.com/bytecodealliance/wasmtime
- WEBhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p8xm-42r7-89xg
- WEBhttps://rustsec.org/advisories/RUSTSEC-2026-0114.html