CVE-2024-30266— Wasmtime vulnerable to panic when using a dropped extenref-typed element segment
Quick assessment
Affected
bytecodealliance wasmtime
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Wasmtime是一个字节码联盟项目，它是一个独立的仅用于 WebAssembly 和 WASI 的 wasm 优化运行时。 wasmtime 19.0.0版本存在安全漏洞，该漏洞源于valid WebAssembly模块在主机运行时存在安全漏洞。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2024-30266
Vulnerability Information
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Vulnerability Title
Wasmtime vulnerable to panic when using a dropped extenref-typed element segment
Source: CVE Program / CVE List V5
Vulnerability Description
wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Vulnerability Title
wasmtime 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wasmtime是一个字节码联盟项目，它是一个独立的仅用于 WebAssembly 和 WASI 的 wasm 优化运行时。 wasmtime 19.0.0版本存在安全漏洞，该漏洞源于valid WebAssembly模块在主机运行时存在安全漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| bytecodealliance | wasmtime | = 19.0.0 | - |
|
II. Public POCs for CVE-2024-30266
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2024-30266 (2)
-
https://github.com/bytecodealliance/wasmtime/pull/8283 x_refsource_MISC
Vendor Advisories for CVE-2024-30266 (1)
Other References for CVE-2024-30266 (1)
-
https://github.com/bytecodealliance/wasmtime/issues/8281 x_refsource_MISC
IV. Related Vulnerabilities
Same product: wasmtime
-
CVE-2026-58494
Wasmtime: WASI hard links bypass wasmtime-wasi's FilePerms f -
CVE-2026-54786
Wasmtime: Leak in WASIp1 `fd_renumber` implementation -
CVE-2026-47261
Wasmtime: WASI path_open(TRUNCATE) bypasses `FilePerms::WRIT -
CVE-2026-44216
Wasmtime: Panic when allocating a table exceeding the size o -
CVE-2026-35195
Wasmtime has an out-of-bounds write or crash when transcodin
Same vendor: bytecodealliance
-
CVE-2026-58494
Wasmtime: WASI hard links bypass wasmtime-wasi's FilePerms f -
CVE-2026-54786
Wasmtime: Leak in WASIp1 `fd_renumber` implementation -
CVE-2026-47261
Wasmtime: WASI path_open(TRUNCATE) bypasses `FilePerms::WRIT -
CVE-2026-44216
Wasmtime: Panic when allocating a table exceeding the size o -
CVE-2026-35195
Wasmtime has an out-of-bounds write or crash when transcodin
V. Comments for CVE-2024-30266
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