Medium severity5.4NVD Advisory· Published Jun 23, 2026· Updated Jun 23, 2026
CVE-2026-56696
CVE-2026-56696
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openharness-aiPyPI | <= 0.1.9 | — |
Affected products
2(expand)+ 1 more
- (no CPE)
- (no CPE)
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-24cw-228q-3rx9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-56696ghsaADVISORY
- github.com/HKUDS/OpenHarness/commit/27bb93b810e9ea8fa4832eab7152eeb3b4a6bffbnvdWEB
- github.com/HKUDS/OpenHarness/pull/272nvdWEB
- www.vulncheck.com/advisories/openharness-prompt-injection-via-issue-and-pr-comments-slash-commandsnvdWEB
News mentions
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