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Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder
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.
Announced Group revision 1
Original source ↗CVE-2026-103552
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103552
Apache Directory LDAP API
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Directory LDAP API",
"versions": [
{
"status": "affected",
"version": "1.2.0",
"lessThan": "1.2.9",
"versionType": "semver"
}
],
"packageURL": "pkg:maven/org.apache.directory.api/api-ldap-codec-core",
"packageName": "org.apache.directory.api:api-ldap-codec-core",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103552
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8181 · Revision 1
- Added to Heist Feed
- Publisher date