CVE-2026-10549Network attack vector

Unauthorized database access via LDAP filter injection

Published Jun 2, 2026 · Updated Jun 2, 2026

LDAP filter injection in Yandex Database before 25.3.1.25 allows remote authenticated users to gain unauthorized database access. The LDAP-backed group-membership check incorporates attacker-controlled credential input into a filter without neutralizing LDAP filter syntax. Valid LDAP credentials are required, and successful exploitation bypasses configured group restrictions on database access.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

LDAP filter injection in Yandex Database before 25.3.1.25 allows remote authenticated users to gain unauthorized database access. The LDAP-backed group-membership check incorporates attacker-controlled credential input into a filter without neutralizing LDAP filter syntax. Valid LDAP credentials are required, and successful exploitation bypasses configured group restrictions on database access.

The record

CVE
CVE-2026-10549
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Yandex
Product
Yandex Database
Classifications
CWE-280, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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=0 <25.3.1.25

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Yandex · Yandex Databaseversion=0 <25.3.1.25

Published CVSS scores

5.3Yandex N.V.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-280Improper Handling of Insufficient Permissions or Privileges
T1078Valid Accounts

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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