{"schemaVersion":3,"id":"CVE-2026-15722","aliases":["UBUNTU-CVE-2026-15722","DEBIAN-CVE-2026-15722"],"status":"published","duplicateOf":null,"title":null,"description":"A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. 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