CVE-2026-35563
8.5 · HIGHOverview
CVE-2026-35563 is a high-severity vulnerability affecting apache directory_ldap_api. It was published on June 1, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP
hostname. While the underlying code validates the certificate chain
against a trusted authority, the absence of endpoint identification
allows a valid certificate issued for an entirely unrelated host to be
improperly accepted. This oversight leaves the connection highly
vulnerable to server impersonation and complete connection compromise.
The
root cause of this vulnerability lies in the incomplete TLS server
identity verification within the LDAP client implementation.
The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store.
The hostname verification has been enforced in the new version of the LDAP API
Remediation
Check the references section for vendor advisories and patches from apache. Update directory_ldap_api to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | directory_ldap_api | >= 2.0.0, < 2.1.7 | Affected |
Frequently Asked Questions
What is CVE-2026-35563?
CVE-2026-35563 is a high-severity vulnerability affecting apache directory_ldap_api. It was published on June 1, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
How severe is CVE-2026-35563?
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-35563?
Check the references section for vendor advisories and patches from apache. Update directory_ldap_api to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-35563?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-35563 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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