FKIE_CVE-2026-40516

Vulnerability from fkie_nvd - Published: 2026-04-17 17:17 - Updated: 2026-04-24 20:32
Severity ?
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
6.3 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Summary
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.
References
disclosure@vulncheck.comhttps://github.com/HKUDS/OpenHarness/commit/bd4df81f634f8c7cddcc3fdf7f561a13dcbf03aePatch
disclosure@vulncheck.comhttps://github.com/HKUDS/OpenHarness/pull/92Exploit, Issue Tracking
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/openharness-ssrf-via-web-fetch-and-web-searchThird Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/HKUDS/OpenHarness/pull/92Exploit, Issue Tracking
Impacted products
Vendor Product Version
hkuds openharness *
To clipboard 

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  "id": "CVE-2026-40516",
  "lastModified": "2026-04-24T20:32:45.790",
  "metrics": {
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          "exploitMaturity": "NOT_DEFINED",
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          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Detection rules are retrieved from Rulezet.