CVE detail
CVE-2026-44216
Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is allocated. This is possible with the WebAssembly memory64 proposal where tables can have sizes in the 64-bit range as opposed to the previous 32-bit range which would not overflow. The panic happens when attempting to create a very large table, such as when instantiating a WebAssembly module or component. This vulnerability is fixed in 36.0.8, 43.0.2, and 44.0.1.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 19.5 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
6 source links · newest first
- https://access.redhat.com/errata/RHSA-2026:45341access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 14, 2026, 3:16 PM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44216.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 14, 2026, 3:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2477467bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 14, 2026, 3:16 PM - https://access.redhat.com/security/cve/CVE-2026-44216access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 14, 2026, 3:16 PM - https://access.redhat.com/errata/RHSA-2026:38187access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 14, 2026, 3:16 PM No excerpt available.
Exploitgithub.comMay 14, 2026, 3:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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