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CVE-2026-56696

CVE-2026-56696 · OpenHarness - Prompt Injection via /issue and /pr_comments Slash Commands

This page contains facts from public vulnerability sources. Check the original advisory before updating.

OpenHarness /issue and /pr_comments slash commands lack remote_invocable=False protection, allowing remote channel senders to write attacker-controlled Markdown into project context files. Admitted remote attackers can inject malicious content into .openharness/issue.md and .openharness/pr_comments.md files, which are subsequently injected into runtime system prompts, persistently influencing local agent behavior.

CVSS 5.3 · Medium · EPSS 0.4%

Published
Updated

Stack: python

Affected products and versions

  • openharness

    Versions
    • ≥ 0, ≤ 0.1.9: Affected (semver)
    • 27bb93b810e9ea8fa4832eab7152eeb3b4a6bffb: Not affected (git)

    No fix published

  • openharness-ai PyPI

    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
    Affected ranges
    • ECOSYSTEM: ≤ 0.1.9

    No fix published

Original sources

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