CVE-2026-86776
No fix known EPSS <1%CVSS 3.3
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.
Products: keepass
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | keepass2 | no fix |
| Debian 13 | keepass2 | no fix |
| Debian 14 | keepass2 | no fix |
| Ubuntu 16.04 LTS | keepass2 | no fix |
| Ubuntu 18.04 LTS | keepass2 | no fix |
| Ubuntu 20.04 LTS | keepass2 | no fix |
| Ubuntu 22.04 LTS | keepass2 | no fix |
| Ubuntu 24.04 LTS | keepass2 | no fix |
| Ubuntu 26.04 LTS | keepass2 | no fix |
| Ubuntu 26.10 | keepass2 | no fix |