CVE-2026-15041
No fix known EPSS <1%CVSS 3.7
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash information, though practical exploitation is extremely difficult due to PBKDF2 computational overhead.
Products: Red Hat Directory Server 11, Red Hat Directory Server 12, Red Hat Directory Server 13, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | 389-ds-base | no fix |
| Debian 13 | 389-ds-base | no fix |
| Ubuntu 22.04 LTS | 389-ds-base | no fix |
| Ubuntu 24.04 LTS | 389-ds-base | no fix |
| Ubuntu 25.10 | 389-ds-base | no fix |
| Ubuntu 26.04 LTS | 389-ds-base | no fix |
| Ubuntu 26.10 | 389-ds-base | no fix |
| Ubuntu Pro 16.04 LTS | 389-ds-base | no fix |
| Ubuntu Pro 18.04 LTS | 389-ds-base | no fix |
| Ubuntu Pro 20.04 LTS | 389-ds-base | no fix |