{"cve":"CVE-2026-56696","nvd":{"published":"2026-06-23T16:17:06.297","modified":"2026-10-25T23:10:00.167","status":"Deferred","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-862"],"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","https://github.com/HKUDS/OpenHarness/pull/272"],"products":[],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-56696","score":0.0037,"percentile":0.30662,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-24cw-228q-3rx9","url":"https://osv.dev/vulnerability/GHSA-24cw-228q-3rx9","summary":"OpenHarness remote project-context commands allow persistent prompt poisoning","modified":"2026-09-10T12:25:37.097640108Z","packages":[{"ecosystem":"PyPI","name":"openharness-ai","purl":"pkg:pypi/openharness-ai","ranges":["<=0.1.9"],"fixed":[]}]},{"id":"PYSEC-2026-3880","url":"https://osv.dev/vulnerability/PYSEC-2026-3880","summary":"OpenHarness remote project-context commands allow persistent prompt poisoning","modified":"2026-09-10T12:15:10.954896187Z","packages":[{"ecosystem":"PyPI","name":"openharness-ai","purl":"pkg:pypi/openharness-ai","ranges":["<=0.1.9"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}