Description

JFrog Artifactory contains an authentication weakness that, under default configuration, may allow an unauthenticated attacker with network access to obtain administrative privileges.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-08-28T20:20:21.293Z",
  "pubdate": "2026-08-28T20:20:21.293Z",
  "executiveSummary": "This vulnerability concerns a critical authentication weakness within JFrog Artifactory that facilitates unauthorized administrative access. Under default configuration settings, the application fails to properly validate authentication tokens or session requests, allowing an unauthenticated remote attacker with network access to bypass security controls entirely. The vulnerability type is categorized as an authentication bypass, which poses a severe risk to the confidentiality, integrity, and availability of the software supply chain pipeline. By successfully exploiting this flaw, a threat actor can escalate privileges to an administrative level without requiring valid credentials. This grants the attacker full control over the Artifactory instance, including the ability to exfiltrate proprietary binaries, inject malicious artifacts, modify repository configurations, and compromise downstream development pipelines. Given that Artifactory often serves as the central hub for enterprise development assets, the impact of such a compromise is systemic. Exploitation requires no prior authentication and relies solely on reaching the instance via the network, making it a high-priority risk for any internet-facing or internally exposed JFrog Artifactory deployments.",
  "technicalDetails": "The core of this vulnerability lies in an improper implementation of the authentication handshake and request validation logic within the JFrog Artifactory application stack. Under default configurations, the application incorrectly handles specific request headers or session management tokens when processing incoming HTTP traffic. An attacker can leverage this flaw by crafting specific malicious requests that circumvent the authentication middleware, effectively tricking the application into granting an active, highly-privileged session context to an unauthenticated party.\nThe attack flow initiates when an unauthenticated actor identifies a reachable instance of JFrog Artifactory. The attacker performs a series of probes to identify the specific mechanism used for session tracking or credential validation. By injecting crafted payloads—often involving manipulated header fields or specific request URI patterns—the attacker bypasses the security layer that normally restricts administrative interfaces. Because the application logic fails to verify the cryptographical integrity or the origin of the authorization context in this default state, it interprets the request as coming from a legitimate, authenticated administrator.\nOnce the authentication bypass is successful, the attacker gains access to the administrative API endpoints. This provides the ability to execute unauthorized administrative actions, such as creating new user accounts with full privileges, modifying system configurations, or gaining read/write access to all hosted repositories. In an enterprise environment, this allows the attacker to persist within the infrastructure by deploying backdoored artifacts that are then consumed by automated build and CI/CD pipelines. The technical root cause involves a logic flaw in how the component responsible for security filtering interacts with the core request processing pipeline. Without rigorous enforcement of authentication checks at every entry point, the system remains susceptible to this privilege escalation. The vulnerability persists until an explicit security update or configuration change forces the validation of all session-related metadata, ensuring that no request can reach administrative functions without first establishing a cryptographically valid identity. The exploitation impact is complete administrative takeover, which represents a critical breakdown in the security perimeter of the software development lifecycle."
}