Vulnerability · Published Oct 16, 2026 · Assigned by GitHub_M

CVE-2026-49410OpenHuman /auth/telegram CSRF allows attacker-controlled session implantation

High 8.1

In plain English

A high-severity cross-site request forgery in openhuman from tinyhumansai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.2%top 91.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
tinyhumansai	openhuman	< 0.56.0

Weakness: CWE-352, CWE-384 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References

https://github.com/tinyhumansai/openhuman/security/advisories/GHSA-c4m9-hw7m-vv3m x_refsource_CONFIRM
https://github.com/tinyhumansai/openhuman/pull/2331 x_refsource_MISC
https://github.com/tinyhumansai/openhuman/commit/b1bbc53fceed7d1f0cff90cbb0a42f4ab8e153a1 x_refsource_MISC
https://github.com/tinyhumansai/openhuman/releases/tag/v0.56.0 x_refsource_MISC