CVE catalog

CVE-2026-115389

UBUNTU-CVE-2026-115389

[CVE catalog]

Severity
Unknown · CVSS 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.15% · Oct 25, 2026

Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not adequately account for host allocations when lifting guest values through the dynamically-typed Val API, bypassing the hostcall fuel limit. A malicious WebAssembly guest can return crafted values that allocate at least ~100x more host memory than tracked, causing denial of service.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianrust-wasmtime1326.0.1+dfsg-10vulnerable
Debianrust-wasmtime1326.0.1+dfsg-3vulnerable
Debianrust-wasmtime1326.0.1+dfsg-4vulnerable
Debianrust-wasmtime1326.0.1+dfsg-5vulnerable
Debianrust-wasmtime1326.0.1+dfsg-6vulnerable
Debianrust-wasmtime1326.0.1+dfsg-7vulnerable
Debianrust-wasmtime1326.0.1+dfsg-8vulnerable
Debianrust-wasmtime1326.0.1+dfsg-9vulnerable
Debianrust-wasmtime1327.0.0+dfsg-2vulnerable
Debianrust-wasmtime1327.0.0+dfsg-3vulnerable
Debianrust-wasmtime1327.0.0+dfsg-4vulnerable
Debianrust-wasmtime1328.0.1+dfsg-1vulnerable
Debianrust-wasmtime1328.0.1+dfsg-2vulnerable
Debianrust-wasmtime1328.0.1+dfsg-3vulnerable
Debianrust-wasmtime1329.0.1+dfsg-1vulnerable
Debianrust-wasmtime1329.0.1+dfsg-2vulnerable
Debianrust-wasmtime1329.0.1+dfsg-3vulnerable
Debianrust-wasmtime1329.0.1+dfsg-4vulnerable
Debianrust-wasmtime1329.0.1+dfsg-5vulnerable
Debianrust-wasmtime1329.0.1+dfsg-6vulnerable
Debianrust-wasmtime1329.0.1+dfsg-7vulnerable
Debianrust-wasmtime1329.0.1+dfsg-8vulnerable
Debianrust-wasmtime1336.0.11+dfsg-1vulnerable
Debianrust-wasmtime1336.0.12+dfsg-1vulnerable
Debianrust-wasmtime1336.0.12+dfsg-2vulnerable
Debianrust-wasmtime1336.0.12+dfsg-3vulnerable
Debianrust-wasmtime1336.0.13+dfsg-1vulnerable
Debianrust-wasmtime1336.0.5+dfsg-1vulnerable
Debianrust-wasmtime1336.0.5+dfsg-2vulnerable
Debianrust-wasmtime1336.0.5+dfsg-3vulnerable
Debianrust-wasmtime1336.0.5+dfsg-4vulnerable
Debianrust-wasmtime1336.0.5+dfsg-5vulnerable
Debianrust-wasmtime1336.0.6+dfsg-1vulnerable
Debianrust-wasmtime1336.0.6+dfsg-2vulnerable
Debianrust-wasmtime1336.0.6+dfsg-3vulnerable
Debianrust-wasmtime1336.0.6+dfsg-4vulnerable
Debianrust-wasmtime1336.0.6+dfsg-5vulnerable
Debianrust-wasmtime1336.0.6+dfsg-6vulnerable
Debianrust-wasmtime1336.0.6+dfsg-7vulnerable
Debianrust-wasmtime1336.0.7+dfsg-1vulnerable
Debianrust-wasmtime1336.0.8+dfsg-1vulnerable
Debianrust-wasmtime1336.0.9+dfsg-1vulnerable
Debianrust-wasmtime1336.0.9+dfsg-2vulnerable
Debianrust-wasmtime1426.0.1+dfsg-10vulnerable
Debianrust-wasmtime1426.0.1+dfsg-3vulnerable
Debianrust-wasmtime1426.0.1+dfsg-4vulnerable
Debianrust-wasmtime1426.0.1+dfsg-5vulnerable
Debianrust-wasmtime1426.0.1+dfsg-6vulnerable
Debianrust-wasmtime1426.0.1+dfsg-7vulnerable
Debianrust-wasmtime1426.0.1+dfsg-8vulnerable
Debianrust-wasmtime1426.0.1+dfsg-9vulnerable
Debianrust-wasmtime1427.0.0+dfsg-2vulnerable
Debianrust-wasmtime1427.0.0+dfsg-3vulnerable
Debianrust-wasmtime1427.0.0+dfsg-4vulnerable
Debianrust-wasmtime1428.0.1+dfsg-1vulnerable
Debianrust-wasmtime1428.0.1+dfsg-2vulnerable
Debianrust-wasmtime1428.0.1+dfsg-3vulnerable
Debianrust-wasmtime1429.0.1+dfsg-1vulnerable
Debianrust-wasmtime1429.0.1+dfsg-2vulnerable
Debianrust-wasmtime1429.0.1+dfsg-3vulnerable
Debianrust-wasmtime1429.0.1+dfsg-4vulnerable
Debianrust-wasmtime1429.0.1+dfsg-5vulnerable
Debianrust-wasmtime1429.0.1+dfsg-6vulnerable
Debianrust-wasmtime1429.0.1+dfsg-7vulnerable
Debianrust-wasmtime1429.0.1+dfsg-8vulnerable
Debianrust-wasmtime1436.0.11+dfsg-1vulnerable
Debianrust-wasmtime1436.0.12+dfsg-1vulnerable
Debianrust-wasmtime1436.0.12+dfsg-2vulnerable
Debianrust-wasmtime1436.0.12+dfsg-3vulnerable
Debianrust-wasmtime1436.0.13+dfsg-1vulnerable
Debianrust-wasmtime1436.0.5+dfsg-1vulnerable
Debianrust-wasmtime1436.0.5+dfsg-2vulnerable
Debianrust-wasmtime1436.0.5+dfsg-3vulnerable
Debianrust-wasmtime1436.0.5+dfsg-4vulnerable
Debianrust-wasmtime1436.0.5+dfsg-5vulnerable
Debianrust-wasmtime1436.0.6+dfsg-1vulnerable
Debianrust-wasmtime1436.0.6+dfsg-2vulnerable
Debianrust-wasmtime1436.0.6+dfsg-3vulnerable
Debianrust-wasmtime1436.0.6+dfsg-4vulnerable
Debianrust-wasmtime1436.0.6+dfsg-5vulnerable
Debianrust-wasmtime1436.0.6+dfsg-6vulnerable
Debianrust-wasmtime1436.0.6+dfsg-7vulnerable
Debianrust-wasmtime1436.0.7+dfsg-1vulnerable
Debianrust-wasmtime1436.0.8+dfsg-1vulnerable
Debianrust-wasmtime1436.0.9+dfsg-1vulnerable
Debianrust-wasmtime1436.0.9+dfsg-2vulnerable
Ubunturust-wasmtime24.0410.0.1+dfsg-7vulnerable
Ubunturust-wasmtime24.0415.0.1+dfsg-4vulnerable
Ubunturust-wasmtime24.0416.0.0+dfsg-2vulnerable
Ubunturust-wasmtime24.0416.0.0+dfsg-3vulnerable
Ubunturust-wasmtime26.1036.0.5+dfsg-1vulnerable
Ubunturust-wasmtime26.1036.0.13+dfsg-1vulnerable
Ubunturust-wasmtime26.0426.0.1+dfsg-3vulnerable
Ubunturust-wasmtime26.0426.0.1+dfsg-4vulnerable
Ubunturust-wasmtime26.0428.0.1+dfsg-3vulnerable
Ubunturust-wasmtime26.0429.0.1+dfsg-5vulnerable
Ubunturust-wasmtime26.0436.0.5+dfsg-1vulnerable

Fixed-version evidence

OpenFactory catalog packages

[Debian 13 (Trixie)]

  • [librust-cranelift-dev]Affected

    Source package: [rust-wasmtime]

    Details (2)

    • 0.113.1+26.0.1+dfsg-3 · all · trixie

      Affected

      pypi · rust-wasmtime · debian · 13

    • 0.113.1+26.0.1+dfsg-3 · all · trixie

      Affected

      pypi · rust-wasmtime · debian · 13

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]