CVE-2026-81421

medium

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.

References

https://vuldb.com/vuln/395941/cti

https://vuldb.com/vuln/395941

https://vuldb.com/submit/887100

https://vuldb.com/cve/CVE-2026-81421

https://github.com/ddfourtwo/sentry-selfhosted-mcp/issues/2

https://github.com/ddfourtwo/sentry-selfhosted-mcp/

Details

Source: Mitre, NVD

Published: 2026-08-27

Updated: 2026-08-27

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00288