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CVE-2026-7774

Published Jun 4, 2026 CWE-22 EPSS 0.60% (46th pctl)

Overview

CVE-2026-7774 is a known-severity vulnerability. It was published on June 4, 2026.

Technical Description

tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/python/cpython/commit/0478bd83d82b255e0f29f613367a59d261e7eaa2 GitHub github.com/python/cpython/commit/0d28f5e46e151718972dfabd91205444d0037b6d GitHub github.com/python/cpython/commit/10a13bee3c24f9c62b602e696334ff2272a40efc GitHub github.com/python/cpython/commit/578411982c16f753f4893532510099ef665117da GitHub github.com/python/cpython/commit/5cf47a248c35c375d610b87b2f72fd1ed454b558 GitHub github.com/python/cpython/commit/74cca9a92fb7d653e404843a56b8bdc7b0afdbbf GitHub github.com/python/cpython/commit/c063191cb7f9170f9565e305f8aa2b79ab2bf609 GitHub github.com/python/cpython/issues/149486 GitHub github.com/python/cpython/pull/149487 Ref mail.python.org/archives/list/[email protected]/thread/4FU62L2M6RMMHT2QPGQNPEHHUND7CEX5/

Frequently Asked Questions

What is CVE-2026-7774?

CVE-2026-7774 is a known-severity vulnerability. It was published on June 4, 2026.

How severe is CVE-2026-7774?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-7774?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-7774?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-7774 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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