This page lists publicly disclosed CVE vulnerabilities affecting redhat 389_directory_server (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2026-11793 | A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only. | [email protected] | 4.9 | 0.35% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11790 | A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication, resulting in denial of service. | [email protected] | 4.9 | 0.34% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11789 | A flaw was found in 389 Directory Server. The SMD5 password storage plugin performs unsigned integer underflow when computing salt length from a crafted password hash shorter than 16 bytes, causing a buffer over-read that crashes the LDAP server during authentication. | [email protected] | 4.9 | 0.34% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11788 | A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure. | [email protected] | 5.9 | 0.41% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11787 | A flaw was found in 389 Directory Server. The ldap_utf8prev() function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior. | [email protected] | 5.0 | 0.20% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11786 | A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation. | [email protected] | 1.9 | 0.17% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11785 | A flaw was found in 389 Directory Server. A type confusion in the SSO token extended operation handler causes partial stack address information to be disclosed in LDAP responses to authenticated users. | [email protected] | 4.3 | 0.21% | 2026-06-09 | 2026-06-17 |
| CVE-2026-11611 | A flaw was found in 389 Directory Server. The Content Synchronization persistent search plugin allows unbounded memory growth when an authenticated client stops reading sync responses, enabling denial of service. Additional race conditions in plugin thread lifecycle can cause crashes during connection teardown or shutdown. | [email protected] | 6.5 | 0.29% | 2026-06-08 | 2026-06-17 |
| CVE-2026-9064 | A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, | [email protected] | 7.5 | 0.79% | 2026-05-20 | 2026-06-18 |
| CVE-2024-6237 | A flaw was found in the 389 Directory Server. This flaw allows an unauthenticated user to cause a systematic server crash while sending a specific extended search request, leading to a denial of service. | [email protected] | 6.5 | 0.92% | 2024-07-09 | 2026-06-17 |
| CVE-2024-1062 | A heap overflow flaw was found in 389-ds-base. This issue leads to a denial of service when writing a value larger than 256 chars in log_entry_attr. | [email protected] | 5.5 | 0.30% | 2024-02-12 | 2026-06-17 |
| CVE-2022-1949 | An access control bypass vulnerability found in 389-ds-base. That mishandling of the filter that would yield incorrect results, but as that has progressed, can be determined that it actually is an access control bypass. This may allow any remote unauthenticated user to issue a filter that allows searching for database items they do not have access to, including but not limited to potentially userPassword hashes and other sensitive data. | [email protected] | 7.5 | 1.38% | 2022-06-02 | 2026-06-17 |
| CVE-2022-0996 | A vulnerability was found in the 389 Directory Server that allows expired passwords to access the database to cause improper authentication. | [email protected] | 6.5 | 1.53% | 2022-03-23 | 2026-06-17 |
| CVE-2021-3514 | When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash. | [email protected] | 6.5 | 1.21% | 2021-05-28 | 2026-06-17 |
| CVE-2020-35518 | When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database. | [email protected] | 5.3 | 1.58% | 2021-03-26 | 2026-06-17 |
| CVE-2010-2222 | The _ger_parse_control function in Red Hat Directory Server 8 and the 389 Directory Server allows attackers to cause a denial of service (NULL pointer dereference) via a crafted search query. | [email protected] | 7.5 | 1.35% | 2019-11-05 | 2026-06-16 |
| CVE-2018-10935 | A flaw was found in the 389 Directory Server that allows users to cause a crash in the LDAP server using ldapsearch with server side sort. | [email protected] | 6.5 | 1.85% | 2018-09-11 | 2026-06-17 |