CVE-2026-115386
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 Memory Disclosure via fd_readdir
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
wasmtime
- Vendor
- bytecodealliance
- Product
- wasmtime
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 36.0.17 | Unavailable | None listed |
| 36.0.17 | unaffected | semver | Unavailable | Unavailable | None listed |
| 37.0.0 | affected | semver | 48.0.4 | Unavailable | None listed |
| 48.0.4 | unaffected | semver | Unavailable | Unavailable | None listed |
| 49.0.0 | affected | semver | 49.0.2 | Unavailable | None listed |
| 49.0.2 | unaffected | semver | Unavailable | Unavailable | None listed |