CVE-2026-15310: zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-29

Last Updated

2026-10-07

EPSS Score

0.53% (percentile: 43.3%)

Affected Products (3)

Other

• 21811-17084
• 21694-17084
• 21897-17084

Security Updates (1)

• Security Update

Revision History

• 2026-08-29: Information published.
• 2026-09-05: Information published.
• 2026-09-09: Information published.
• 2026-09-09: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.
• 2026-10-05: Information published.
• 2026-10-07: Information published.