CVE-2026-91988
Last modified
CVE-2026-91988 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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..
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| dep0we | atomic-agents-stack | < 1.1.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-91988?
How severe is CVE-2026-91988?
How do I fix CVE-2026-91988?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-91982Vikunja before 2.6.0 continues to expose the raw TOTP shared…4.3
- CVE-2026-91983Vikunja before 2.6.0 contains an API token scope bypass vuln…4.3
- CVE-2026-91984Vikunja before 2.6.0 fails to validate that user-supplied pr…4.3
- CVE-2026-91985Vikunja before 2.6.0 fails to properly restrict access to th…7.5
- CVE-2026-91986gitoxide gix-transport before 0.59.2 fails to filter control…5.4
- CVE-2026-91987atomic-agents-stack before 1.1.0 contains a cost-guardrail b…6.5
- CVE-2026-91989atomic-agents-stack before 1.1.0 contains a path traversal v…7.5
- CVE-2026-9199The Equalize Digital Accessibility Checker – WCAG, ADA, EAA …4.3
- CVE-2026-91990Tornado before 6.5.8 contains a memory amplification vulnera…7.5
- CVE-2026-91991Tornado before 6.5.8 contains an incomplete fix for cookie a…5.4
- CVE-2026-91992Tornado before 6.5.7 contains a credential leak vulnerabilit…5.9
- CVE-2026-91993Jpom through 2.11.12 fails to validate workspace ownership w…4.3
Are you affected by CVE-2026-91988?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
