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CVE-2026-9669

Published Jun 8, 2026 CWE-121 EPSS 0.43% (36th pctl)

Overview

CVE-2026-9669 is a known-severity vulnerability. It was published on June 8, 2026.

Technical Description

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer. This could crash the process when processing untrusted data.

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/157a5df8cb5d82b33f918a7489e72ce95ceb12b6 GitHub github.com/python/cpython/commit/1ba6135eae75ad8413413caeeedb56ae72320636 GitHub github.com/python/cpython/commit/5755d0f083949ff3c5bf3a37e673e24e306b036e GitHub github.com/python/cpython/commit/619a12b2e545391dc436b3af79dda22337382a6f GitHub github.com/python/cpython/commit/938ec030e90c5e53f1faac6fab1643f14e4f4a79 GitHub github.com/python/cpython/commit/991e6cf86496718c4ef00b362d640e00cb5c85b2 GitHub github.com/python/cpython/commit/d3ca26983dfbccdf609f24ff5877dc3118e4702d GitHub github.com/python/cpython/issues/150599 GitHub github.com/python/cpython/pull/150600 Ref mail.python.org/archives/list/[email protected]/thread/DBJZETMGUIFK7DVUWMOXHD3Z6IX2QPSX/

Frequently Asked Questions

What is CVE-2026-9669?

CVE-2026-9669 is a known-severity vulnerability. It was published on June 8, 2026.

How severe is CVE-2026-9669?

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-2026-9669?

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-2026-9669?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-9669 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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