PT-2026-33464 · Hkuds · Openharness

Published 2026-04-17 · Updated 2026-04-17 · CVE-2026-40516

NVD

CVSS v3.1

8.3

High

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

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.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-40516

Affected Products

Openharness

References · 5

• 🔥 https://github.com/HKUDS/OpenHarness/pull/92 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-40516 · Security Note
• https://github.com/HKUDS/OpenHarness/commit/bd4df81f634f8c7cddcc3fdf7f561a13dcbf03ae · Patch
• https://twitter.com/VulmonFeeds/status/2045240106336862624 · Twitter Post
• https://vulncheck.com/advisories/openharness-ssrf-via-web-fetch-and-web-search · Note