CVE-2026-14940 — 389-ds-base: 389-ds-base: heap-buffer-overflow in dn normalization via quoted multivalued rdn
A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a legacy-quoted value encoding a multivalue…
Published: 2026-07-07 · CVSS: 5.3 · CVSS 3.1
A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), the server can write past the end of a heap allocation while sorting RDN attribute-value pairs. An unauthenticated remote attacker can trigger this condition by sending an LDAP operation whose DN reaches the DN normalization routine, such as a search with a crafted base DN. This can corrupt heap memory and may cause denial of service.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7