CVE-2026-56695 OpenHarness - Cross-Session Disclosure via /resume and /summary Commands
Remote attackers can access private session snapshots containing credentials and prompts via exposed gateway commands.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56695?
CVE-2026-56695 is a high-severity vulnerability in HKUDS OpenHarness, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenHarness ohmo gateway /resume and /summary slash commands default remote_invocable to True, allowing admitted remote senders to enumerate and load arbitrary session snapshots by ID. Attackers can exploit this to access victim snapshots containing private prompts, credentials, tool output, and file paths via shared gateway channels.
Weakness: CWE-862
Which versions are affected by CVE-2026-56695?
3 open source packages ship an affected version, including openharness-ai.
| Package | Affected | Fixed in |
|---|---|---|
openharness-ai PyPI | All versions to 0.1.9 | None |
openharness-ai PyPI | All versions to 0.1.9 | None |
openharness-ai PyPI | All versions to 0.1.9 | None |
How do I fix CVE-2026-56695?
No fix has been published for CVE-2026-56695 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56695 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56695 exists.
Sources
Also known as GHSA-399c-3gm2-p29v, PYSEC-2026-3881.