CVE-2026-33609
Received Received - Intake
LDAP Injection in Open-Xchange with 8bit-dns Enables Internal Query Access

Publication date: 2026-04-22

Last updated on: 2026-04-24

Assigner: Open-Xchange

Description
Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.
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Meta Information
Published
2026-04-22
Last Modified
2026-04-24
Generated
2026-06-16
AI Q&A
2026-04-22
EPSS Evaluated
2026-06-15
NVD
CVE-2026-33609
EUVD
EUVD-2026-24947
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
powerdns authoritative From 4.9.0 (inc) to 4.9.14 (exc)
powerdns authoritative From 5.0.0 (inc) to 5.0.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-90 The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
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Executive Summary

This vulnerability involves incomplete escaping of LDAP queries when the system is running with 8bit-dns enabled. This flaw allows users to perform queries on internal domain subtrees that they should not normally have access to.

Impact Analysis

The vulnerability can impact you by allowing unauthorized users to query internal domain subtrees, potentially exposing sensitive internal directory information. According to the CVSS score, it has a moderate impact on confidentiality (high impact on confidentiality), but does not affect integrity or availability.

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