CVE-2026-115379
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
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a missing GC rooting vulnerability that leaves references live across try_call unrooted when compiling Wasm modules. Attackers can supply Wasm modules whose callee triggers garbage collection, leaving stale or dangling references that cause GC heap corruption or incorrect execution.
CVSS 6.9 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Affected products and versions
wasmtime
- Versions
- ≥ 47.0.0, < 48.0.4: Affected (semver)
- 48.0.4: Not affected (semver)
- ≥ 49.0.0, < 49.0.2: Affected (semver)
- 49.0.2: Not affected (semver)
Update to 48.0.4; Update to 49.0.2