Is CVE-2026-42496 actively exploited?

No active exploitation of CVE-2026-42496 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42496 be exploited remotely?

Yes. CVE-2026-42496 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42496?

CVE-2026-42496 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-42496

CWE-59Published: May 26, 2026· Updated: May 28, 2026

9.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.5th

Official Description

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.

NVD Source

Risk Analysis

This critical vulnerability in Archive::Tar for Perl allows attackers to extract symlinks with controlled targets outside the extraction directory. With a CVSS score of 9.1, this can lead to information disclosure or data manipulation. The absence of an EPSS score means its exploitation likelihood is currently unknown.

No public exploit is currently known for this vulnerability. Its network attack vector and low attack complexity indicate it is remotely exploitable without user interaction.

Recommended Action

Upgrade Archive::Tar for Perl to version 3.08 or later to address this symlink vulnerability. Ensure that all archive extraction processes validate symlink targets to prevent directory traversal.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-42496 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.1.