CVE-2026-115386

2.6 Faible

Publiée le 22/10/2026 à 21:17 · Modifiée le 22/10/2026 à 21:17 · Analyse NVD reportée · Source : disclosure@vulncheck.com

Description

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an information disclosure vulnerability in the WASIp1 fd_readdir implementation that copies uninitialized struct padding into guest memory. Guests with a preopened directory can list entries to receive three bytes of leftover host stack or heap memory per directory entry.

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Produits concernés

bytecodealliance wasmtime

Scores CVSS

Version	Score	Source	Vecteur
4.0	2.1 Faible	disclosure@vulncheck.com	`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/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`
3.1	2.6 Faible	disclosure@vulncheck.com (NVD)	`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N`

Faiblesses (CWE)

CWE-908

Références

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-96f6-r43r-8c24
https://www.vulncheck.com/advisories/wasmtime-before-36.0.17-37.0.0-before-48.0.4-and-49.0.0-before-49.0.2-memory-disclosure-via-fd-readdir

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories