CVE intelligence

CVE-2026-87910

Vulnerability intelligence

Published Sep 11, 2026Sources checked Sep 27, 2026

5.7MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-87910 and is rated Medium severity with a CVSS score of 5.7. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-87910?

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was ignored. Instead, the member should be skipped if either call returns None.