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AutoGPT CVE-2026-55237

| EUVDEUVD-2026-37915 HIGH
Improper Neutralization of Alternate XSS Syntax (CWE-87)
2026-06-18 GitHub_M
8.8
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L
vuln.today AI
8.8 HIGH

Network-delivered link, low complexity, no attacker auth, requires victim click (UI:R); script runs in victim's authenticated origin so scope changes with high confidentiality and limited integrity/availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:L/SC:L/SI:L/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
Low

Lifecycle Timeline

2
Patch available
Jun 18, 2026 - 19:01 EUVD
Analysis Generated
Jun 18, 2026 - 17:07 vuln.today

DescriptionCVE.org

AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Versions prior to 0.6.62 have a DOM-based Cross-Site Scripting (XSS) vulnerability in AutoGPT's signup page. The application improperly trusts a URL parameter (next), which is passed to router.push. An attacker can craft a malicious link that, when opened by an authenticated user, performs a client-side redirect and executes arbitrary JavaScript in the context of their browser. This could lead to credential theft, internal network pivoting, and unauthorized actions performed on behalf of the victim. Version 0.6.62 patches the issue.

AnalysisAI

DOM-based cross-site scripting in AutoGPT versions prior to 0.6.62 allows remote attackers to execute arbitrary JavaScript in an authenticated victim's browser by tricking them into clicking a crafted signup-page link whose next URL parameter is passed unsanitized into router.push. No public exploit identified at time of analysis, but the GitHub Security Advisory (GHSA-j2cp-jg5q-38wj) confirms the issue and ships a fix in 0.6.62.

Technical ContextAI

AutoGPT is a Significant-Gravitas workflow automation platform for orchestrating long-running AI agents, with a Next.js/React front-end that uses the Next router's router.push for client-side navigation. The signup page reads a next query parameter and passes it directly into router.push without validating that the value is a same-origin path. CWE-87 (Improper Neutralization of Alternate XSS Syntax) covers this class: a javascript: or otherwise abusable URI placed in next becomes an executable navigation target, so the redirect primitive degrades into client-side script execution. The CPE cpe:2.3:a:significant-gravitas:autogpt:* confirms all AutoGPT releases before 0.6.62 share the vulnerable code path.

RemediationAI

Vendor-released patch: AutoGPT 0.6.62 - upgrade all front-end instances to 0.6.62 or later per the advisory at https://github.com/Significant-Gravitas/AutoGPT/security/advisories/GHSA-j2cp-jg5q-38wj. If immediate upgrade is not possible, compensating controls include front-of-app filtering (web application firewall or reverse-proxy rule that strips or rejects next query parameters on /signup whose value is not a relative path beginning with / and not containing :), adding a strict Content-Security-Policy with script-src 'self' to block inline/javascript: execution (side effect: any legitimate inline scripts in AutoGPT may break and require testing), and operator awareness training to avoid clicking AutoGPT signup links received from untrusted sources until the patch is rolled out.

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CVE-2026-55237 vulnerability details – vuln.today

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