CVE-2026-65618 Overview
CVE-2026-65618 is a Server-Side Request Forgery (SSRF) vulnerability in JFrog Artifactory caused by improper URL validation when handling specific URLs [CWE-918]. An authenticated attacker can coerce Artifactory into making unauthorized outbound requests. Successful exploitation can expose internal services reachable from the Artifactory host and reveal cached response data.
The vulnerability is network-exploitable and requires low privileges with no user interaction. It affects confidentiality only, with no direct impact on integrity or availability.
Critical Impact
Authenticated attackers can force JFrog Artifactory to issue arbitrary outbound HTTP requests, exposing internal-only services and cached response data.
Affected Products
- JFrog Artifactory (self-managed)
- Vendor: JFrog
- Component: jfrog:artifactory
Discovery Timeline
- 2026-07-27 - CVE-2026-65618 published to NVD
- 2026-07-30 - Last updated in NVD database
Technical Details for CVE-2026-65618
Vulnerability Analysis
JFrog Artifactory fails to properly validate URLs supplied to specific endpoints that trigger outbound HTTP requests. An authenticated attacker can supply a crafted URL that Artifactory then fetches on the attacker's behalf. Because the request originates from the Artifactory server, it can reach internal-only services, cloud metadata endpoints, or other systems that are not exposed to the attacker's network position.
The response, or portions of it, can be returned to the attacker or observed via cached data. This turns Artifactory into a request proxy for the internal network. The vulnerability is classified under CWE-918: Server-Side Request Forgery. No public proof-of-concept or exploit code is currently available, and the flaw is not listed in the CISA Known Exploited Vulnerabilities catalog.
Root Cause
The root cause is insufficient validation of user-controlled URLs before Artifactory issues outbound requests. The URL parser accepts inputs that route requests to unintended hosts, including internal IP ranges, loopback addresses, and non-HTTP schemes depending on the affected endpoint. Missing allow-listing and hostname resolution controls allow the attacker to bypass intended request boundaries.
Attack Vector
Exploitation requires network access to the Artifactory instance and valid credentials with basic privileges. An attacker submits a request to an affected endpoint containing a crafted URL that points to an internal resource. Artifactory resolves the URL and issues the request from its own context. The response body, headers, or cached representation may then be retrieved by the attacker, exposing internal service data.
The vulnerability is described in prose only. No verified exploitation code has been published. Consult the JFrog Security Advisories Documentation for endpoint-specific technical details.
Detection Methods for CVE-2026-65618
Indicators of Compromise
- Outbound HTTP requests from the Artifactory host to internal IP ranges (RFC1918), loopback addresses, or cloud metadata endpoints such as 169.254.169.254.
- Unusual entries in Artifactory access logs where authenticated users supply URL parameters targeting non-repository hostnames.
- Cached responses in Artifactory storage that reference internal-only services or unexpected external domains.
Detection Strategies
- Inspect Artifactory request logs for URL parameters containing internal hostnames, private IP addresses, or non-standard ports.
- Correlate authenticated user activity with outbound network flows originating from the Artifactory server.
- Alert on repeated requests to endpoints that trigger remote fetches, particularly from accounts with minimal repository usage history.
Monitoring Recommendations
- Deploy egress filtering on the Artifactory host and log all blocked or unexpected outbound connections.
- Enable verbose access logging in Artifactory and forward logs to a centralized SIEM for anomaly analysis.
- Baseline normal outbound traffic patterns from Artifactory and alert on deviations, including requests to metadata services or internal management interfaces.
How to Mitigate CVE-2026-65618
Immediate Actions Required
- Upgrade JFrog Artifactory to a fixed version as listed in the JFrog Artifactory Releases Documentation.
- Audit authenticated user accounts and revoke unused or low-trust credentials that could be leveraged for exploitation.
- Restrict outbound network access from the Artifactory host to only the domains required for remote repository operations.
Patch Information
JFrog has published fixed releases through its self-managed release channel. Administrators should consult the JFrog Security Advisories Documentation for the specific advisory covering CVE-2026-65618 and apply the corresponding version upgrade. Verify the deployed version after upgrade and confirm that any cached responses from the vulnerable window are invalidated.
Workarounds
- Place Artifactory behind an egress proxy that enforces an allow-list of permitted upstream repositories.
- Block outbound requests from the Artifactory host to internal networks, loopback interfaces, and cloud metadata endpoints at the network layer.
- Reduce the number of accounts with permission to configure or trigger remote repository fetches until the patch is applied.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
