CVE-2026-119137
Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a stack overflow vulnerability that allows guests to crash the host through recursive type drops. Guests can define a long chain of recursive types so that removing the top-level type triggers unbounded recursive drops, exhausting the host stack.
- Score
- 6.9 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-2026-119137: Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before
49.0.3 contains a stack overflow vulnerability that allows guests
to crash the host through recursive type drops. Guests can define a
long chain of recursive types so that removing the top-level type
triggers unbounded recursive drops, exhausting the host stack.</p>
</body>
</description>
<references>
<cvename>CVE-2026-119137</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-119137</url>
</references>
<dates>
<discovery>2026-10-29</discovery>
<entry>2026-10-29</entry>
</dates>
</vuln>