CVE-2026-48332: Adobe ColdFusion SSRF Vulnerability

CVE-2026-48332 Overview

CVE-2026-48332 is a Server-Side Request Forgery (SSRF) vulnerability affecting Adobe ColdFusion 2023 and ColdFusion 2025. A low-privileged attacker can leverage this flaw to bypass security controls and gain unauthorized read access to resources reachable by the ColdFusion server. Exploitation requires no user interaction, and the CVSS scope is marked as changed, meaning the impact extends beyond the vulnerable component.

The issue is tracked under CWE-918: Server-Side Request Forgery. Adobe published the fix in security bulletin APSB26-82. With an EPSS probability in the 95th percentile, the vulnerability shows meaningful likelihood of exploitation activity in the near term.

Critical Impact
An authenticated low-privileged attacker can coerce ColdFusion into issuing arbitrary outbound requests, bypassing network segmentation and accessing internal-only services or metadata endpoints.

Affected Products

Adobe ColdFusion 2023 (base release through Update 21)
Adobe ColdFusion 2025 (base release through Update 10)
All deployments exposing ColdFusion administrative or application endpoints to network-reachable clients

Discovery Timeline

2026-07-14 - CVE-2026-48332 published to NVD
2026-07-15 - Last updated in NVD database

Technical Details for CVE-2026-48332

Vulnerability Analysis

The vulnerability resides in ColdFusion functionality that accepts user-supplied URLs or hostnames and issues server-side HTTP requests without adequate validation. An authenticated low-privileged user can supply a crafted target address, causing the ColdFusion server process to fetch the requested resource on the attacker's behalf. Because the server initiates the request, filtering that relies on client source IP is bypassed.

The scope-changed rating indicates that a successful attack affects resources beyond the ColdFusion security boundary. Common targets include cloud instance metadata services (IMDS), internal admin panels, and services bound to loopback interfaces. Only confidentiality is impacted; the flaw does not directly allow modification or denial of service.

Root Cause

The root cause is missing or insufficient validation of destination URLs used by ColdFusion server-side request features. Adobe's advisory categorizes the flaw as [CWE-918], indicating that untrusted input flows into an outbound network request without allowlist enforcement, scheme restrictions, or blocking of link-local and private address ranges.

Attack Vector

Exploitation occurs remotely over the network. The attacker authenticates with any low-privileged account, then submits a request containing a URL pointing to an internal host, cloud metadata endpoint, or restricted service. ColdFusion resolves the address and returns the response contents or observable behavior back to the attacker, effectively proxying the request through the trusted server.

No public proof-of-concept has been released, and CISA KEV does not list this CVE. See the Adobe ColdFusion Security Advisory APSB26-82 for vendor-specific technical detail.

Detection Methods for CVE-2026-48332

Indicators of Compromise

Outbound HTTP or HTTPS requests from the ColdFusion JVM process (coldfusion.exe or jrun.exe) to internal RFC1918 ranges, 169.254.169.254, or 127.0.0.1 on non-standard ports
ColdFusion application logs recording HTTP client operations with attacker-controlled URLs originating from low-privileged sessions
Unexpected DNS lookups originating from ColdFusion servers targeting internal-only hostnames

Detection Strategies

Baseline legitimate outbound destinations for ColdFusion servers and alert on deviations, especially requests to metadata services or internal management interfaces
Inspect ColdFusion application.log, exception.log, and web server access logs for suspicious URL parameters submitted by authenticated low-privileged accounts
Correlate authentication events with subsequent outbound network activity to identify session-driven SSRF patterns

Monitoring Recommendations

Deploy egress filtering on ColdFusion hosts and alert when blocked destinations include cloud metadata IPs or private ranges
Monitor for anomalous response sizes and status codes returned to ColdFusion client sessions that could indicate exfiltrated internal content
Enable audit logging for ColdFusion administrator and application endpoints that accept URL parameters

How to Mitigate CVE-2026-48332

Immediate Actions Required

Apply the Adobe security updates referenced in APSB26-82 for ColdFusion 2023 and ColdFusion 2025
Inventory all ColdFusion instances, including development and staging, and confirm patch level via the ColdFusion Administrator version banner
Audit low-privileged accounts and remove unused or shared credentials that could be leveraged for authenticated exploitation

Patch Information

Adobe released fixed builds for ColdFusion 2023 and ColdFusion 2025 through security bulletin APSB26-82. Administrators should install the latest cumulative update for their major version and restart the ColdFusion service. Verify that the JVM and any related runtime components are updated alongside the ColdFusion patch.

Workarounds

Restrict ColdFusion outbound network access using host-based firewall rules or cloud security groups that block RFC1918 destinations and 169.254.169.254
Enforce IMDSv2 on AWS and equivalent hardened metadata configurations on Azure and GCP to prevent metadata credential theft via SSRF
Place ColdFusion behind a reverse proxy or web application firewall configured to inspect and block requests containing internal IP literals or suspicious URL schemes
Require multi-factor authentication and least-privilege role assignment for ColdFusion Administrator and application user accounts

bash

# Example iptables egress restriction for a ColdFusion host
iptables -A OUTPUT -m owner --uid-owner coldfusion -d 169.254.169.254 -j REJECT
iptables -A OUTPUT -m owner --uid-owner coldfusion -d 10.0.0.0/8 -j REJECT
iptables -A OUTPUT -m owner --uid-owner coldfusion -d 172.16.0.0/12 -j REJECT
iptables -A OUTPUT -m owner --uid-owner coldfusion -d 192.168.0.0/16 -j REJECT