Privilege escalation in Yandex Database

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Summary

CVECVE-2026-10549
StatePUBLISHED
Assigneryandex
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-02 10:16:20 UTC
Updated2026-07-22 19:10:00 UTC
DescriptionLDAP filter injection vulnerability in Yandex Database prior to 25.3.1.25 allows a remote attacker with valid LDAP credentials to bypass group membership checks resulting in unauthorized access to the database.

Risk And Classification

Primary CVSS: v4.0 5.3 MEDIUM from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:X

EPSS: 0.002680000 probability, percentile 0.186910000 (date 2026-07-22)

Problem Types: CWE-280 | CWE-280 CWE-280 Improper handling of insufficient permissions or privileges

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/C...
4.0CNACVSS5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/AU:Y

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
Low
Sub Integrity
Low
Sub Availability
Low

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Yandex Yandex Database affected 25.3.1.25 custom Not specified

References

ReferenceSourceLinkTags
ydb.tech/docs/ru/security-changelog [email protected] ydb.tech
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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