GitHub Advisoryadvisory · PyPI

GHSA-24cw-228q-3rx9 OpenHarness remote project-context commands allow persistent prompt poisoning

MEDIUM Published 2026-06-23 Modified 2026-09-04 Official page ↗
Aliases
CVE-2026-56696
Ecosystem
PyPI
Packages
openharness-ai
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-862
Reviewed
2026-09-04

Affected packages

• PyPI openharness-ai: <= 0.1.9 (no fix yet)

Description

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.

Related

Alias · CVE (1)

  • CVE-2026-56696 OpenHarness /issue and /pr_comments slash commands lack remote_invocable=False protection, allowing remote channel senders to write… vulnerability

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References