low3.3
CVE-2026-86776
KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| KeePass | KeePass Versions 2.35 | through 2.61.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.