VDB
DEBIAN-CVE-2026-23405
DEBIAN-CVE-2026-23405
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix: limit the number of levels of policy namespaces Currently the number of policy namespaces is not bounded relying on the user namespace limit. However policy namespaces aren't strictly tied to user namespaces and it is possible to create them and nest them arbitrarily deep which can be used to exhaust system resource. Hard cap policy namespaces to the same depth as user namespaces.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 6.12.38-1, 6.12.41-1 |
| Debian:11 | linux | 5.10.92-2, 0, 5.10.103-1 |
| Debian:13 | linux | 6.12.43-1, 6.12.43-1, 6.12.48-1 |
| Debian:12 | linux | 6.1.69-1, 6.1.69-1~bpo11+1, 6.1.76-1 |
Exploit Intelligence
- 4593.2.0.yml (github-poc)
- 4628.1.0.yml (github-poc)
Timeline
- Apr 1, 2026 CVE Published
- Apr 28, 2026 CVE Updated