CVE-2026-86776
Low · 3.3CVSS
3.3
EPSS
0.2%
Published
Sep 9, 2026
CISA due date
—
The record
KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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