CVE-2026-19271Network attack vector

LDAP data disclosure via sign-in query injection

Published Aug 26, 2026 · Updated Aug 26, 2026

LDAP injection in Liderahenk 3.4.0 through 3.5.4 allows remote attackers to read LDAP-backed data through the sign-in endpoint. The endpoint incorporates authentication input into an LDAP query without adequately neutralizing LDAP metacharacters, enabling blind query manipulation. No authentication or user interaction is required, and the reported impact is limited to confidentiality, with no data modification or service interruption reported.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

LDAP injection in Liderahenk 3.4.0 through 3.5.4 allows remote attackers to read LDAP-backed data through the sign-in endpoint. The endpoint incorporates authentication input into an LDAP query without adequately neutralizing LDAP metacharacters, enabling blind query manipulation. No authentication or user interaction is required, and the reported impact is limited to confidentiality, with no data modification or service interruption reported.

The record

CVE
CVE-2026-19271
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
TÜBİTAK BİLGEM Software Technologies Research Institute
Product
Liderahenk
Classifications
CWE-90, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.4.0 <3.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TÜBİTAK BİLGEM Software Technologies Research Institute · Liderahenkversion=3.4.0 <3.5.5

Published CVSS scores

7.5TR-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-90Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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