Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. (CVE-2026-103885)
An asymmetric resource consumption vulnerability exists in Apache Directory LDAP API versions from 2.1.0 up to but not including 2.1.9. This flaw can cause an LDAP server using the API to consume 100% of a CPU core indefinitely when processing certain malformed Telephone Numbers. The issue is resolved in version 2.1.9.
AI Analysis
Technical Summary
The Apache Directory LDAP API contains an asymmetric resource consumption vulnerability (CVE-2026-103885) affecting versions from 2.1.0 before 2.1.9. When an LDAP server leveraging this API processes specially crafted Telephone Number inputs, it may enter a state of indefinite high CPU usage, effectively causing a denial of service condition. The vulnerability is addressed by upgrading to version 2.1.9, which includes the fix.
Potential Impact
Affected LDAP servers may experience sustained 100% CPU utilization on one core when handling maliciously crafted Telephone Numbers, potentially degrading service availability or performance. There is no indication of data compromise or privilege escalation from this vulnerability.
Mitigation Recommendations
Users should upgrade Apache Directory LDAP API to version 2.1.9 or later to remediate this vulnerability. No other mitigation steps are indicated.
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. (CVE-2026-103885)
Description
An asymmetric resource consumption vulnerability exists in Apache Directory LDAP API versions from 2.1.0 up to but not including 2.1.9. This flaw can cause an LDAP server using the API to consume 100% of a CPU core indefinitely when processing certain malformed Telephone Numbers. The issue is resolved in version 2.1.9.
Affected software
pkg:maven/org.apache.directory.api/api-ldap-apiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Apache Directory LDAP API contains an asymmetric resource consumption vulnerability (CVE-2026-103885) affecting versions from 2.1.0 before 2.1.9. When an LDAP server leveraging this API processes specially crafted Telephone Number inputs, it may enter a state of indefinite high CPU usage, effectively causing a denial of service condition. The vulnerability is addressed by upgrading to version 2.1.9, which includes the fix.
Potential Impact
Affected LDAP servers may experience sustained 100% CPU utilization on one core when handling maliciously crafted Telephone Numbers, potentially degrading service availability or performance. There is no indication of data compromise or privilege escalation from this vulnerability.
Mitigation Recommendations
Users should upgrade Apache Directory LDAP API to version 2.1.9 or later to remediate this vulnerability. No other mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c2cq-mmh3-7wxh
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-103885"]
- State
- PUBLISHED
Threat ID: 6abfee9ca43b0b3b89e551a0
Added to database: 10/02/2026, 17:49:16 UTC
Last enriched: 10/02/2026, 18:03:14 UTC
Last updated: 10/02/2026, 19:45:56 UTC
Views: 3
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