# libtalloc2 security updates

Patch Radar has 4 security fixes for libtalloc2, closing 9 CVEs. The newest is libtalloc2 2:2.4.3+samba4.22.3+dfsg-4ubuntu2.4 (2:2.4.3+samba4.22.3+dfsg-4ubuntu2.4), released May 27, 2026.

- Web page: https://patchblox.com/security/product/linux/libtalloc2
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libtalloc2 2:2.4.3+samba4.22.3+dfsg-4ubuntu2.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libtalloc2-2-2.4.3-samba4.22.3-dfsg-4ubuntu2.4.md) | May 27, 2026 | Ubuntu 25.10 (questing) 2:2.4.3+samba4.22.3+dfsg-4ubuntu2.4 | Urgent | 6 | 0 |
| [libtalloc2 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libtalloc2-2-2.4.2-samba4.21.4-dfsg-1ubuntu3.5.md) | Oct 15, 2025 | Ubuntu 25.04 (plucky) 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.5 | High | 2 | 0 |
| [libtalloc2 2:2.4.3+samba4.22.3+dfsg-4ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libtalloc2-2-2.4.3-samba4.22.3-dfsg-4ubuntu2.1.md) | Oct 14, 2025 | Ubuntu 25.10 (questing) 2:2.4.3+samba4.22.3+dfsg-4ubuntu2.1 | High | 2 | 0 |
| [libtalloc2 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libtalloc2-2-2.4.2-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 | Ubuntu 25.04 (plucky) 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1 | Routine | 1 | 0 |

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Data as of 2026-11-07T00:32:44Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo