CVE-2026-119138
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows pending calls to trigger an assertion failure after a trap poisons the Store. Attackers supplying misbehaving guest code can cause a trap and let earlier calls proceed, crashing embedders that continue using the inconsistent Store.
- Score
- 5.9 medium
- Published
- 2026-10-29
- Links
- NVD · cve.org · Report wrong data
Matched ports (1)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| devel/libwasmtime | libwasmtime | 49.0.2_1 | unaddressed | longros@FreeBSD.org |
Template for a VuXML entry
Check the version numbers before you commit this entry. Some ports share an entry in the CVE database with another port, such as sqlite2 and sqlite3. The version shown here may then be one that never existed for this port.
Ranges per package from the CVE rows that match this port, in pkg notation with the port's epoch and revision, every bound checked with pkg; one range per epoch the port actually had. make newentry in security/vuxml creates the vid.
<vuln vid="FIXME (make newentry)">
<topic>libwasmtime -- FIXME</topic>
<affects>
<package>
<name>libwasmtime</name>
<!-- 49.0.3 is not released yet, newest upstream is 49.0.2 -->
<range><ge>49.0.0</ge><lt>49.0.3</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>CVE-2026-119138: Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before
49.0.3 contains a denial of service vulnerability that allows
pending calls to trigger an assertion failure after a trap poisons
the Store. Attackers supplying misbehaving guest code can cause a
trap and let earlier calls proceed, crashing embedders that
continue using the inconsistent Store.</p>
</body>
</description>
<references>
<cvename>CVE-2026-119138</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-119138</url>
</references>
<dates>
<discovery>2026-10-29</discovery>
<entry>2026-10-29</entry>
</dates>
</vuln>