low2.6
CVE-2026-115386
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an information disclosure vulnerability in the WASIp1 fd_readdir implementatio…
Impact
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an information disclosure vulnerability in the WASIp1 fd_readdir implementation that copies uninitialized struct padding into guest memory. Guests with a preopened directory can list entries to receive three bytes of leftover host stack or heap memory per directory entry.
Affected products
| Product | Affected versions |
|---|---|
| Wasmtime | before 36.0.17 |
| 37.0.0 | before 48.0.4 |
| And 49.0.0 | before 49.0.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.