CVE-2026-42496

ADVISORY - nist

Summary

Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.

_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.

A subsequent open through the extracted name reads or writes the attacker chosen path.

EPSS Score⁠: 0.00481 (0.379)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-59⁠

Improper Link Resolution Before File Access ('Link Following')

Impacted images

Advisories

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