Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-50561

Yuxi has a JWT Authentication Bypass Leading to Cross-Instance Administrator Token Reuse
Back to all
CVE

CVE-2026-50561

Yuxi has a JWT Authentication Bypass Leading to Cross-Instance Administrator Token Reuse

Yuxi is a large-model-based intelligent knowledge base and knowledge graph agent development platform. Prior to version 0.6.2, the project's authentication mechanism contains a flaw. In affected versions, the system does not sufficiently validate the identity token in the Authorization header — only performing a validity check. This allows an administrator token generated in another deployment instance or local testing environment to be used to access the backend management interfaces of a different affected instance. An attacker who obtains or constructs an acceptable administrator Authorization token may bypass normal login authentication and gain administrator privileges. This vulnerability could allow an attacker to access system configurations, invoke backend management APIs, create administrator accounts, and ultimately take over the system backend. This issue has been fixed in version 0.6.2. Before upgrading, users are advised to implement the following temporary measures: Set the environment variable JWTSECRETKEY to a non-default value, and configure a unique, sufficiently strong JWT/authentication key for each deployment instance; and/or avoid exposing backend management interfaces directly to the public network.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.4
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50561.json, https://github.com/xerrors/Yuxi/security/advisories/GHSA-6959-99pq-c56x, https://nvd.nist.gov/vuln/detail/CVE-2026-50561, https://github.com/xerrors/Yuxi/issues/673, https://github.com/xerrors/Yuxi/commit/1e8b20e30b1258d1cd3ebf3af5c6212da4b84b48

Severity

9.4

CVSS Score
0
10

Basic Information

Base CVSS
9.4
EPSS Probability
0.0037%
EPSS Percentile
0.2977%
Introduced Version
0
Fix Available
1e8b20e30b1258d1cd3ebf3af5c6212da4b84b48

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading