CVE-2026-115379: Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 GC Heap Corruption via try_call

Overview

Severity

Medium (CVSS 5.7)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-25

Last Updated

2026-10-27

EPSS Score

0.28% (percentile: 20.0%)

Affected Products (2)

Other

• 21840-17084
• 21918-17084

Revision History

• 2026-10-25: Information published.
• 2026-10-27: Information published.