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CVE-2026-40516

HIGH

8.3

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.18.3

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/17/2026

Ultima modificacao4/17/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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