Cloudanix VulnDB

CVE-2026-49421

High · 7.1

CVSS

7.1

EPSS

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Published

Aug 19, 2026

CISA due date

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The record

The kernel function that implements unlinkat(2) and funlinkat(2) validated the AT_RESOLVE_BENEATH flag but failed to pass it through to the underlying path lookup. The flag was silently dropped, so path resolution was not actually restricted. A process that uses AT_RESOLVE_BENEATH with unlinkat(2) or funlinkat(2) to confine path resolution can in fact resolve paths above the starting directory. A caller relying on this flag for path containment may delete files outside the intended directory tree.

Affected packages

Ecosystem Package Introduced Fixed

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