What is GHSA-wr36-693x-8mgc?

GHSA-wr36-693x-8mgc is a security advisory published by GitHub Security Advisories with Critical severity. atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry...

Which CVE IDs does GHSA-wr36-693x-8mgc cover?

GHSA-wr36-693x-8mgc covers the following CVE IDs: CVE-2026-91988. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wr36-693x-8mgc?

GHSA-wr36-693x-8mgc has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-wr36-693x-8mgcCriticalCVSS 8.1

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry...

Vendor

GitHub Security Advisories

Published

September 15, 2026

Last Modified

September 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-91988 →

📋 Description

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry backend factory, allowing network man-in-the-middle attackers to rewrite catalog responses. Attackers can inject arbitrary command and argument values that are spawned as local subprocesses by MCPClientPool to achieve code execution on the agent host.

🔗 References (4)

https://github.com/dep0we/atomic-agents-stack/security/advisories/GHSA-xhcr-cqfr-m3hv
https://nvd.nist.gov/vuln/detail/CVE-2026-91988
https://www.vulncheck.com/advisories/atomic-agents-stack-before-1.1.0-remote-code-execution-via-http-mcp
https://github.com/advisories/GHSA-wr36-693x-8mgc