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Vulnerability record · CVE-2026-56695 · published 23 June 2026

CVE-2026-56695: Missing authorization vulnerability

OpenHarness ohmo gateway /resume and /summary slash commands default remote_invocable to True, allowing admitted remote senders to enumerate and load arbitrary session snapshots by ID. Attackers can exploit this to access victim snapshots containing private prompts, credentials, tool output, and file paths via shared gateway channels.

7.1 CVSS 4.0 High EPSS 0.40% · top 68.2% CWE-862 · Missing authorization Deferred
7.1CVSS 4.0 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
24 Jun 2026Last modified by NVD

Description

OpenHarness ohmo gateway /resume and /summary slash commands default remote_invocable to True, allowing admitted remote senders to enumerate and load arbitrary session snapshots by ID. Attackers can exploit this to access victim snapshots containing private prompts, credentials, tool output, and file paths via shared gateway channels.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/HKUDS/OpenHarness/commit/92e298852c9b9c8c2266236292073623418c640a
https://github.com/HKUDS/OpenHarness/pull/276
https://www.vulncheck.com/advisories/openharness-cross-session-disclosure-via-resume-and-summary-commands
https://github.com/HKUDS/OpenHarness/pull/276

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Source: NIST National Vulnerability Database (record CVE-2026-56695), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.