Bug 2530660 (CVE-2026-86776) - CVE-2026-86776 KeePass: KeePass: Denial of Service via crafted KDBX file
Summary: CVE-2026-86776 KeePass: KeePass: Denial of Service via crafted KDBX file
Keywords:
Status: NEW
Alias: CVE-2026-86776
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2530809 2530810
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-09 10:24 UTC by OSIDB Bzimport
Modified: 2026-09-09 12:08 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-09 10:24:08 UTC 
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.
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