CVE-2026-49421 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionThe 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. Metrics
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CVSS 4.0 Severity and Vector Strings:
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-49421 NVD Published Date: 08/19/2026 NVD Last Modified: 08/19/2026 Source: FreeBSD |
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