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TI-2026-66016 Aliases CVE-2026-103552GHSA-mggr-349m-j697

Stack-based buffer overflow in Apache Directory LDAP API

Priority LOW 38CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00327 25th percentileScored 2026-11-07
Fix Fixed Apache Directory LDAP API (Apache Software Foundation): 1.2.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Directory LDAP API1.2.0 to before 1.2.91.2.9Patch availableCNA
  • Apache Directory LDAP API VendorApache Affected 1.2.0 to before 1.2.9 Fixed in 1.2.9 Patch available CNA

Remediation

  • Fix · CNA Apache Directory LDAP API (Apache Software Foundation) Fixed in 1.2.9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache Directory LDAP API 1.2.9

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-66009 Apache Directory LDAP API: Denial of service via excessive memory allocation in BER decodePriority LOW 39
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat Fuse 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103552
  2. 2026-10-03 Alias added: GHSA-mggr-349m-j697
  3. 2026-10-05 Affected versions changed · Red Hat
  4. 2026-10-13 Affected versions changed · Red Hat

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences