CVE-2026-12528

Affected software/component: 389 Directory Server, in function __aclp__normalize_acltxt() of aclparse.c. Issue: malformed ACI strings can trigger heap-buffer-overflow writes and reads during ACI parsing; the keyword length after whitespace stripping is not validated, causing 1-byte out-of-bounds ...

CVE-2026-12528 389-ds-base: 389-ds-base: heap-buffer-overflows in __aclp__normalize_acltxt()

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

Important: Red Hat Security Advisory: redhat-ds:12 security update

An update for the redhat-ds:12 module is now available for Red Hat Directory Server 12.4 E4S for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext 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...

Important: Red Hat Security Advisory: redhat-ds:11 security update

An update for the redhat-ds:11 module is now available for Red Hat Directory Server 11.7 E4S for RHEL 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

RHSA-2026:26461 Red Hat Security Advisory: redhat-ds:11 security update

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RHSA-2026:26460 Red Hat Security Advisory: 389-ds:1.4 security update

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RHSA-2026:26459 Red Hat Security Advisory: 389-ds:1.4 security update

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RHSA-2026:26455 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update

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Important: Red Hat Security Advisory: 389-ds-base security update

An update for 389-ds-base is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext 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...

Important: Red Hat Security Advisory: 389-ds:1.4 security update

An update for the 389-ds:1.4 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Important: Red Hat Security Advisory: 389-ds-base security update

An update for 389-ds-base is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext 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...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext 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...

Important: Red Hat Security Advisory: 389-ds:1.4 security update

An update for the 389-ds:1.4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Comm...

Important: Red Hat Security Advisory: 389-ds:1.4 security update

An update for the 389-ds:1.4 module is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Comm...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext 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...

Important: Red Hat Security Advisory: redhat-ds:11 security update

An update for the redhat-ds:11 module is now available for Red Hat Directory Server 11.5 E4S for RHEL 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...