MEDIUM

CVE-2026-56696

2026-06-23 CVSS v3.1

CVSS

5.4

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.

Weakness (CWE)

CWE-862 Missing Authorization

EPSS Score

0.37%

Probability of exploitation in next 30 days

30.9th percentile

References

https://github.com/HKUDS/OpenHarness/commit/27bb93b810e9ea8fa4832eab7152eeb3b4a6bffb https://github.com/HKUDS/OpenHarness/pull/272 https://www.vulncheck.com/advisories/openharness-prompt-injection-via-issue-and-pr-comments-slash-commands

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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