CVE-2026-56696

MediumCVSS 5.4/10Last modified Jun 23, 2026

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 23, 2026
Last modified
Jun 23, 2026
NVD status
Deferred

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CVE-2026-56696: Medium severity, CVSS 5.4 | Vulnix