Description

OpenHarness before commit bd4df81 contains a server-side request forgery vulnerability in the web_fetch and web_search tools that allows attackers to access private and localhost HTTP services by manipulating tool parameters without proper validation of target addresses. Attackers can influence an agent session to invoke these tools against loopback, RFC1918, link-local, or other non-public addresses to read response bodies from local development services, cloud metadata endpoints, admin panels, or other private HTTP services reachable from the victim host.

INFO

Published Date :

2026-04-17T16:02:09.082Z

Last Modified :

2026-04-17T16:27:11.780Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40516 vulnerability.

Vendors Products
Hkuds
  • Openharness
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40516.

URL Resource
https://github.com/HKUDS/OpenHarness/commit/bd4df81f634f8c7cddcc3fdf7f561a13dcbf03ae cve-icon cve-icon
https://github.com/HKUDS/OpenHarness/pull/92 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/openharness-ssrf-via-web-fetch-and-web-search cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact