SB2026042397 - Missing Release of Resource after Effective Lifetime in Wasmtime
Published: April 23, 2026
Security Bulletin ID
SB2026042397
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2025-61670)
CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper resource management in the Wasmtime C/C++ API when handling externref or anyref values. A remote user can trigger memory leaks to cause a denial of service.
The issue affects the C/C++ API, while the Rust crate is unaffected. User interaction is required.
Remediation
Install update from vendor's website.