CVE-2026-103877 Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements

Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server or pre-TLS MITM can answer a client's loadSchema subschema search with a schema object that contains a serialized Java class, allowing some potential RCE. This issue affects Apache...

EUVD-2026-91361

Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server or pre-TLS MITM can answer a client's loadSchema subschema search with a schema object that contains a serialized Java class, allowing some potential RCE. This issue affects Apache...

io.github.bkoehm:apacheds-embedded (0.6), org.apache.camel.karaf:camel-ldif (>=4.14.5, <=4.18.4) +57 more potentially affected by CVE-2026-103877 via org.apache.directory.api:api-ldap-schema-data (>=2.1.0, <=2.1.8)

org.apache.directory.api:api-ldap-schema-data MAVEN version =2.1.0, =4.14.5, =3.26.0, =3.26.0, =4.14.0, =4.14.0, =2.1.0, =2.1.0, =2.1.0, =2.1.0, =2.1.8 - org.apache.directory.server:apacheds-core 2.0.0.am27 - org.apache.directory.server:apacheds-core-annotations 2.0.0.am27 -...

CVE-2026-103877

The Apache Directory LDAP API versions 2.1.0 through 2.1.8 are vulnerable to a Deserialization of Untrusted Data flaw. A rogue or compromised LDAP server, or an attacker performing a pre-TLS man-in-the-middle (MitM) attack, can intercept a client's loadSchema() subschema search and return a craft...

EUVD-2026-91359

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced...

CVE-2026-103880 Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced...

CVE-2026-103880 Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced...

CVE-2026-103880

The Apache Directory LDAP API is vulnerable to an Asymmetric Resource Consumption (CWE-405) vulnerability. When storing a password using the bcrypt algorithm with a high cost factor (e.g., 30), the server CPU can be forced to run for hours while checking credentials, leading to a Denial of Servic...

CVE-2026-103878

Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API:...

io.github.bkoehm:apacheds-embedded (0.6), org.apache.camel.karaf:camel-ldif (>=4.14.5, <=4.18.4) +56 more potentially affected by CVE-2026-103878 via org.apache.directory.api:api-ldap-client-api (>=2.1.0, <=2.1.8)

org.apache.directory.api:api-ldap-client-api MAVEN version =2.1.0, =4.14.5, =3.26.0, =3.26.0, =4.14.0, =4.14.0, =2.1.0, =2.1.0, =2.1.0, =2.1.8 - org.apache.directory.server:apacheds-core 2.0.0.am27 - org.apache.directory.server:apacheds-core-annotations 2.0.0.am27 -...

CVE-2026-103878 Apache Directory LDAP API: Injection of plaintext responses during StartTLS

Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API:...

CVE-2026-103878 Apache Directory LDAP API: Injection of plaintext responses during StartTLS

Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API:...

EUVD-2026-91378

Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API:...

CVE-2026-103878

The Apache Directory LDAP API versions 2.1.0 through 2.1.8 are vulnerable to a cleartext transmission of sensitive information. The root cause involves a StartTLS extended operation initiated after a Search request has been sent, which can result in data being received in plain text before the TL...

CVE-2026-103552 Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9,...

CVE-2026-103552

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9,...

CVE-2026-103552 Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9,...

EUVD-2026-91382

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9,...

CVE-2026-103552

A Stack Overflow vulnerability exists in the Apache Directory LDAP API (versions 1.2.0 to before 1.2.9). An unauthenticated remote attacker can trigger this by submitting a deeply nested search filter before binding with the server. The flaw occurs in the server's decoder, which can lead to an ap...

CVE-2026-103552

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9,...