CVE-2026-119545
Description
A flaw was found in Forgejo. A remote, unauthenticated attacker can conduct Server-Side Request Forgery (SSRF) by submitting an arbitrary OpenID identifier to the login endpoint. This issue forces the server to send unverified HTTP requests to internal addresses, loopback interfaces, or cloud metadata endpoints. Consequently, an attacker can perform internal port scanning and probe restricted services that are not directly accessible from the public network.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Integrity
Technical Impact: Execute Unauthorized Code or Commands
Access Control
Technical Impact: Bypass Protection Mechanism
By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
