PYSEC-2026-3880
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/openharness-ai/PYSEC-2026-3880.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-3880
- Aliases
- Published
- 2026-09-10T09:44:50Z
- Modified
- 2026-09-10T12:15:10Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- OpenHarness remote project-context commands allow persistent prompt poisoning
- Details
-
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.
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2026-56696
- https://github.com/HKUDS/OpenHarness/pull/272
- https://github.com/HKUDS/OpenHarness/commit/27bb93b810e9ea8fa4832eab7152eeb3b4a6bffb
- https://github.com/HKUDS/OpenHarness
- https://www.vulncheck.com/advisories/openharness-prompt-injection-via-issue-and-pr-comments-slash-commands
- https://pypi.org/project/openharness-ai
- https://github.com/advisories/GHSA-24cw-228q-3rx9
Affected packages
PyPI / openharness-ai
Package
- Name
- openharness-ai
- View open source insights on deps.dev
- Purl
- pkg:pypi/openharness-ai