CVE-2026-34942

medium Red Hat
CVSS v3 Base Score
5.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: April 9, 2026 (34 days ago)
Last Modified: April 9, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Wasmtime, a runtime for WebAssembly. This vulnerability allows a malicious guest to trigger a host panic by improperly verifying the alignment of reallocated strings during transcoding. By transferring specific strings across components, an attacker can exploit this to cause a Denial of Service (DoS) on the host system, making it unavailable.

CWE

CWE-823

Affected Products

Red Hat Connectivity Link 1Red Hat Enterprise Linux 10

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com