PYSEC-2026-3881

    Dashboard / Vulnerabilities / PYSEC-2026-3881

    PYSEC-2026-3881

    Published: 10 Sept 2026Last Modified: 10 Sept 2026

    Summary: OpenHarness remote resume commands expose other users' saved session snapshots

    Details: 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-56695, https://github.com/HKUDS/OpenHarness/pull/276, https://github.com/HKUDS/OpenHarness/commit/92e298852c9b9c8c2266236292073623418c640a, https://github.com/HKUDS/OpenHarness, https://www.vulncheck.com/advisories/openharness-cross-session-disclosure-via-resume-and-summary-commands, https://pypi.org/project/openharness-ai, https://github.com/advisories/GHSA-399c-3gm2-p29v

    Affected packages

    Package

    Name: openharness-ai

    Purl: pkg:pypi/openharness-ai

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.1.0
    0.1.1
    0.1.2
    0.1.3
    0.1.4
    0.1.5
    0.1.6
    0.1.7
    0.1.8
    0.1.9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-3881 | CVE-DB