CVE-2026-115390

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 54/100
Published: 2026-10-22 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

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

Description

Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 contains a fuel accounting flaw in Cranelift-compiled call_ref and try_table catch paths. Malicious guests can reset consumed fuel after calls to run exponentially long on linear fuel, evading timeouts and periodic yields for denial of service.

Weakness Classification (1)

Bug Bounty Relevance

54 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/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

0.24%
Raw Score 0.002420
Percentile 15.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00242
2026-10-28
0.00242

Intelligence Sources

nvd ref →