Affects a widely deployed web server; critical memory-safety flaw with RCE risk; needs urgent attention.
CVE-2026-29167
Use-after-free in Apache mod_ldap per-dir config may allow remote code execution.
Is CVE-2026-29167 being exploited?
Not confirmed. CVE-2026-29167 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.69% probability of exploitation in the next 30 days.
How severe is CVE-2026-29167?
CVE-2026-29167 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-29167?
Yes. A fix has been recorded for CVE-2026-29167. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-29167 affect?
CVE-2026-29167 affects Apache HTTP Server 2.4.0-2.4.67, mod_ldap. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-29167?
Upgrade to Apache 2.4.68 immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution or crash via crafted per-directory LDAP config in Apache; attacker could run code under the Apache process.
Immediate action required
- affected>= 2.4.0 and <= 2.4.67
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.