Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Host Panic via WASIp3 Timestamps
Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASIp3 implementation that allows guests to abort the Unix host process. Guests with mutable preopened directory access can call set-times or set-times-at with negative seconds timestamps before the epoch, triggering an assertion failure that crashes the host.
CVE-2026-115385
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-115385
wasmtime
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "bytecodealliance",
"product": "wasmtime",
"versions": [
{
"status": "affected",
"version": "46.0.0",
"lessThan": "48.0.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "48.0.4",
"versionType": "semver"
},
{
"status": "affected",
"version": "49.0.0",
"lessThan": "49.0.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "49.0.2",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/wasmtime-wasi",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-115385
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #52340 · Revision 1
- Added to Heist Feed
- Publisher date