CVE-2026-119141

Name	CVE-2026-119141
Description	Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows malicious Wasm modules to panic the host because the may_leave flag is not cleared during realloc. Attackers can call into the host from realloc while lowering stream or future results, such as cancelling the active read or re-waiting a waitable-set, crashing the host.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rust-wasmtime (PTS)	trixie	26.0.1+dfsg-3	fixed
	forky, sid	36.0.13+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rust-wasmtime	source	(unstable)	(not affected)

Notes

- rust-wasmtime <not-affected> (Only affects 46 and later)
https://github.com/advisories/GHSA-7v24-42x9-pxf7
https://rustsec.org/advisories/RUSTSEC-2026-0356.html
https://github.com/bytecodealliance/wasmtime/pull/14739