CVE-2026-49410 OpenHuman /auth/telegram CSRF allows attacker-controlled session implantation
An attacker can hijack a local user's session via CSRF, gaining access to agent actions, memory, and Telegram messages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49410?
CVE-2026-49410 is a high-severity vulnerability in tinyhumansai openhuman, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
OpenHuman is an open-source agent harness available as a desktop application and Rust library. Versions before 0.56.0 allow cross-site request forgery against the unauthenticated GET /auth/telegram loopback callback because telegram_auth_handler consumes an attacker-supplied one-time Telegram login token and passes the returned JWT to credentials::ops::store_session without validating browser fetch metadata or the request origin. An attacker with an OpenHuman account can cause a user with the local core running to visit a malicious page that requests the /auth/telegram endpoint on loopback port 7788, switching the user's active local session to the attacker's backend account and exposing subsequent agent actions, memory writes, and Telegram messages associated with that session to the attacker. This issue is fixed in version 0.56.0.
Which versions are affected by CVE-2026-49410?
How do I fix CVE-2026-49410?
No fix has been published for CVE-2026-49410 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49410 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49410 exists.
Sources
Also known as GHSA-c4m9-hw7m-vv3m.