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CVE-2026-50163

HIGH(7.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Risk Signal Score28/100 — MITTEL
  • CVSS 7.1 — Hoch
  • Weniger als 24 Stunden alt

Beschreibung

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

GitHub Advisories

GHSA-fxhp-mv3v-67qpHIGH

`oras-go` tar extraction: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution

go/oras.land/oras-go/v2
GitHub Advisory

Referenzen