CVE-2023-26489 is a critical vulnerability in wasmtime and cranelift-codegen, specifically affecting the x86_64 architecture. The bug in Cranelift's code generator allows a malicious WebAssembly module to read or write memory up to 35 bits away from the base of linear memory, exceeding the intended 33-bit limit. This can lead to unauthorized access to memory belonging to other WebAssembly instances. With a CVSS score of 9.9 (CRITICAL), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. An authenticated attacker could exploit this to gain significant control over the affected system. There is currently no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.84.0, < 0.91.1CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:cranelift-codegen:*:*:*:*:*:rust:*:* | ||
0.92.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:cranelift-codegen:0.92.0:*:*:*:*:rust:*:* | ||
0.93.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:cranelift-codegen:0.93.0:*:*:*:*:rust:*:* | ||
>= 0.37.0, < 4.0.1CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
5.0.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:5.0.0:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.