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TI-2026-29263 Aliases CVE-2026-40516GHSA-785m-9q28-jp3m

OpenHarness SSRF via web_fetch and web_search

Priority HIGH 73CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hkuds:openharness:*:*:*:*:*:*:*:*before 2026-04-11VulnerableHKUDS
  • cpe:2.3:a:hkuds:openharness:*:*:*:*:*:*:*:* Versions before 2026-04-11 Vulnerable ·HKUDS

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    HKUDS OpenHarness bd4df81f634f8c7cddcc3fdf7f561a13dcbf03ae

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-29262 OpenHarness Permission Bypass via grep and glob root argumentPriority MEDIUM 43
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40516
  2. 2026-10-03 Alias added: GHSA-785m-9q28-jp3m

References

Exploit 1

Patch 1

  • TI-2026-05985 HKUDS OpenHarness Insecure Default Remote Channel Allowlist CVSS 4.0HIGH 8.3
  • TI-2026-29262 OpenHarness Permission Bypass via grep and glob root argument CVSS 4.0HIGH 8.7
  • TI-2026-29252 OpenHarness Remote Administrative Command Injection via Gateway Handler CVSS 4.0HIGH 8.7
  • TI-2026-06639 HKUDS OpenHarness Remote Command Execution via /bridge Slash Command CVSS 4.0HIGH 8.7
  • TI-2026-05982 HKUDS OpenHarness Plugin Management Command Exposure CVSS 4.0HIGH 8.7
  • TI-2026-29253 OpenHarness Path Traversal Information Disclosure via /memory show CVSS 4.0HIGH 7.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences