Description
KeePassXC is a cross-platform community-driven port of the Windows application KeePass Password Safe. Prior to 2.8.0-beta1, KeePass1 / KDB legacy import retains raw Entry pointers in m_entryUuids after deleting metastream entries. When a crafted, unlockable .kdb file contains an earlier metastream entry followed by a KPX_CUSTOM_ICONS_4 metastream that references the earlier UUID, parseCustomIcons4() calls Entry::setIcon through the stale pointer, causing a heap use-after-free with a controlled write and a reliable process crash. This issue is fixed in version 2.8.0-beta1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| keepassxreboot | keepassxc | < 2.8.0-beta1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | keepassxc | 2.8.0+dfsg1-1 | — |
| Debian 13 | keepassxc | No fix yet | — |
| Debian 12 | keepassxc | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | keepassxc | No fix yet | — |
| Ubuntu 26.04 LTS | keepassxc | No fix yet | — |
| Ubuntu 24.04 LTS | keepassxc | No fix yet | — |
| Ubuntu 22.04 LTS | keepassxc | No fix yet | — |
| Ubuntu 20.04 LTS | keepassxc | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | keepassxc | No fix yet | — |
Advisories 1
- WID-SEC-2026-3560 KeePassXC: Mehrere Schwachstellen ermöglichen Denial of Service und Offenlegung BSI CERT-Bund (WID) · Oct 29, 2026