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RUSTSEC-2026-0323

fd_readdir copies uninitialized struct padding into guest memory

Reported
Issued
Package
wasmtime-wasi (crates.io)
Type
Vulnerability
Aliases
References
CVSS Score
2.1 LOW
CVSS Details
Attack Complexity
Low
Attack Requirements
Present
Attack Vector
Network
Privileges Required
Low
Availability Impact to the Subsequent System
None
Confidentiality Impact to the Subsequent System
None
Integrity Impact to the Subsequent System
None
User Interaction
Passive
Availability Impact to the Vulnerable System
None
Confidentiality Impact to the Vulnerable System
Low
Integrity Impact to the Vulnerable System
None
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Patched
  • >=36.0.17, <37.0.0
  • >=48.0.4, <49.0.0
  • >=49.0.2

Description

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-96f6-r43r-8c24 For more information see the GitHub-hosted security advisory.

Advisory available under CC0-1.0 license.