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CVE-2026-40516

HIGH

8.3

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.18.3

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/17/2026

Ultima modificacion4/17/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-918

Referencias

https://github.com/HKUDS/OpenHarness/commit/bd4df81f634f8c7cddcc3fdf7f561a13dcbf03ae(disclosure@vulncheck.com)

https://github.com/HKUDS/OpenHarness/pull/92(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openharness-ssrf-via-web-fetch-and-web-search(disclosure@vulncheck.com)

https://github.com/HKUDS/OpenHarness/pull/92(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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