A security flaw has been discovered in ddfourtwo sentry-selfhosted-mcp 0.4.0. The affected element is an unknown function of the component raw_sentry_api. The manipulation of the argument endpoint results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Ddfourtwo
  • Sentry-selfhosted-mcp

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References
Link Providers
https://github.com/ddfourtwo/sentry-selfhosted-mcp/ cve-icon cve-icon
https://github.com/ddfourtwo/sentry-selfhosted-mcp/issues/2 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-81421 cve-icon cve-icon
https://vuldb.com/submit/887100 cve-icon cve-icon
https://vuldb.com/vuln/395941 cve-icon cve-icon
https://vuldb.com/vuln/395941/cti cve-icon cve-icon
History

Thu, 27 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 27 Aug 2026 00:30:00 +0000

Type Values Removed Values Added
Description A security flaw has been discovered in ddfourtwo sentry-selfhosted-mcp 0.4.0. The affected element is an unknown function of the component raw_sentry_api. The manipulation of the argument endpoint results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Title ddfourtwo sentry-selfhosted-mcp raw_sentry_api server-side request forgery
First Time appeared Ddfourtwo
Ddfourtwo sentry-selfhosted-mcp
Weaknesses CWE-918
CPEs cpe:2.3:a:ddfourtwo:sentry-selfhosted-mcp:*:*:*:*:*:*:*:*
Vendors & Products Ddfourtwo
Ddfourtwo sentry-selfhosted-mcp
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-08-26T23:45:09.560Z

Updated: 2026-08-27T14:01:32.252Z

Reserved: 2026-08-26T19:05:40.944Z

Link: CVE-2026-81421

cve-icon Vulnrichment

Updated: 2026-08-27T14:01:29.025Z

cve-icon NVD

Status : Received

Published: 2026-08-27T01:18:16.227

Modified: 2026-08-27T01:18:16.227

Link: CVE-2026-81421

cve-icon Redhat

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