---
id: CVE-2026-56695
aliases:
  - GHSA-399c-3gm2-p29v
  - PYSEC-2026-3881
title: OpenHarness remote resume commands expose other users' saved session snapshots
summary: OpenHarness remote resume commands expose other users' saved session snapshots
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
vendor: openharness-ai
product: openharness-ai
ecosystem: pip
affected:
  - openharness-ai <= 0.1.9
published: '2026-06-23'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T12:25:44.327592347Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-399c-3gm2-p29v'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56695'
  - url: 'https://github.com/HKUDS/OpenHarness/pull/276'
  - url: >-
      https://github.com/HKUDS/OpenHarness/commit/92e298852c9b9c8c2266236292073623418c640a
  - url: 'https://github.com/HKUDS/OpenHarness'
  - url: >-
      https://www.vulncheck.com/advisories/openharness-cross-session-disclosure-via-resume-and-summary-commands
  - url: 'https://pypi.org/project/openharness-ai'
  - url: 'https://github.com/advisories/GHSA-399c-3gm2-p29v'
tags:
  - osv
  - pip
epss: 0.00402
epssPercentile: 0.31677
ingestedAt: '2026-09-04T19:32:57.363Z'
---

## Overview

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.

## Affected packages

- `openharness-ai <= 0.1.9`

## Remediation

Refer to the advisory for the patched release.