CVE-2026-123811: dynatrace-mcp · Missing Authentication for Critical Functionality
Affects dynatrace-mcpSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 2.0.0 soon.
Data as of 9 Nov 2026, 21:19 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.5 |
|---|
- Patch
- Available – fixed in 2.0.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade dynatrace-mcp to 2.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dynatrace-ossdynatrace-mcp | Affected
| Fixed in
|
AI-suggested
Upgrade to dynatrace-mcp version 2.0.0 or later, where this vulnerability is fixed. Versions prior to 2.0.0 are affected. No other mitigation is indicated by the vendor advisory.
Description
CVE-2026-123811 is a vulnerability in dynatrace-oss dynatrace-mcp versions prior to 2.0.0 where the server started with the --http option accepts JSON-RPC requests without authentication or session validation. This allows network-reachable attackers to invoke critical functions such as reading logs, security events, and user sessions, or creating tenant-visible notebooks. The issue is fixed in version 2.0.0.
References
- github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5 (opens in a new tab)
- github.com/dynatrace-oss/dynatrace-mcp/commit/8f12972481e9165e8bd24d63b0a9e71976f85a43 (opens in a new tab)
- github.com/dynatrace-oss/dynatrace-mcp/commit/ac5251edfcf9511c6c662414da743383e7d1451c (opens in a new tab)
- github.com/dynatrace-oss/dynatrace-mcp/commit/ead820322238633f5b289778c57faf5d3a8d73f9 (opens in a new tab)
- github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v2.0.0 (opens in a new tab)