CVE-2026-119138

MEDIUM
MEDIUM Priority: 0.00 BB Relevance: 42/100
Published: 2026-10-29 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: Passive
S: X
AT: Present
VC: None
VI: None
VA: High

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 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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
bytecodealliance wasmtime 46.0.0 < 48.0.6
bytecodealliance wasmtime 46.0.0 < 48.0.6
bytecodealliance wasmtime 49.0.0 < 49.0.3

Bug Bounty Relevance

42 / 100
✓ Network accessible

CVSS Score

5.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

No EPSS data available

Intelligence Sources

mitre ref →
nvd ref →