SB2026041629 - Cross-site request forgery in authlib

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site request forgery (CVE-ID: N/A)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform cross-site request forgery and bind an attacker's account to a victim's session.

The vulnerability exists due to cross-site request forgery in OAuth integrations using the cache feature when handling OAuth callback requests with cached state. A remote attacker can send a crafted redirect URL to the victim to perform cross-site request forgery and bind an attacker's account to a victim's session.

User interaction is required for the victim to complete the authorization flow.

Remediation

Install update from vendor's website.

References

• https://github.com/authlib/authlib/security/advisories/GHSA-jj8c-mmj3-mmgv
• https://github.com/advisories/GHSA-jj8c-mmj3-mmgv