CVE-2026-44930: Apache CXF: LDAP Injection vulnerability in XKMS LDAP Repository
An LDAP injection vulnerability in the LDAP Certificate repository of the XKMS server in Apache CXF may allow an attacker to retrieve arbitrary certificates from the repository.
Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue.
Security readout for executives and security teams
Plain-English summary
Apache CXF’s XKMS LDAP certificate repository can be manipulated through LDAP injection. A remote unauthenticated attacker may retrieve certificates that should not be accessible. The sources describe confidentiality impact, not system takeover, data modification, or service disruption.
Executive priority
Treat this as a high-priority confidentiality issue for any internet-facing or partner-facing CXF XKMS deployment. Patch promptly where the LDAP repository is in use; deprioritize only after confirming the affected component is absent or not enabled.
Technical view
CVE-2026-44930 is CWE-90 in Apache CXF’s XKMS LDAP Certificate repository, package org.apache.cxf.services.xkms:cxf-services-xkms-x509-repo-ldap. CVSS 3.1 is 7.5: network, low complexity, no privileges, no user interaction, high confidentiality impact only.
Likely exposure
Exposure is likely limited to Apache CXF deployments that run the XKMS server with the LDAP Certificate repository component. The source bundle lists Apache CXF versions including 4.2.0, 4.0.0, and 0, with fixed versions 4.2.1, 4.1.6, and 3.6.11.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no supplied source states active exploitation. The risk is still material because the CVSS vector indicates remote unauthenticated access with low attack complexity and high confidentiality impact.
Researcher notes
The supplied evidence identifies arbitrary certificate retrieval, not write access or denial of service. Affected-version granularity is limited in the bundle, so researchers should rely on Apache advisory details and vendor package mapping before declaring individual products affected.
Mitigation direction
Upgrade Apache CXF to 4.2.1, 4.1.6, or 3.6.11.
Prioritize systems exposing XKMS services over a network.
Identify uses of cxf-services-xkms-x509-repo-ldap in application dependencies.
Review Apache and Red Hat guidance for product-specific packaging status.
If immediate upgrade is blocked, reduce exposure until vendor guidance is applied.
Validation and detection
Inventory Apache CXF versions in deployed applications and build manifests.
Confirm whether the XKMS server LDAP Certificate repository is enabled.
Check for dependency org.apache.cxf.services.xkms:cxf-services-xkms-x509-repo-ldap.
Verify upgraded deployments report a fixed Apache CXF version.
Review certificate repository access logs for unusual retrieval patterns.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-90: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-90 · source CWE mapping
Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.