CVE-2026-48382

Executive Summary

CVE-2026-48382 is a critical Incorrect Authorization (CWE-863) vulnerability in Adobe Experience Manager (AEM) that allows unauthenticated, remote attackers to achieve arbitrary code execution within the context of the current user, potentially leading to elevated access or full account/session compromise. With a maximum CVSS score of 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H), this flaw requires no user interaction and has a changed scope, indicating the attacker can impact resources beyond the vulnerable component. AEM is widely deployed as an enterprise content management system, making this a high-priority threat for organizations using the platform, despite no current evidence of public exploits or CISA KEV listing.

Technical Analysis

CVE-2026-48382 is classified as CWE-863: Incorrect Authorization. This weakness category encompasses flaws where an application fails to correctly enforce access control policies, allowing an actor to perform actions or access resources that should be restricted. In the context of Adobe Experience Manager, this likely manifests as a missing or improperly implemented authorization check on a publicly accessible endpoint or servlet. Because the vulnerability is network-exploitable (AV:N), has low attack complexity (AC:L), requires no privileges (PR:N), and no user interaction (UI:N), an attacker can directly send crafted requests to the vulnerable AEM instance. The scope change (S:C) suggests that successful exploitation can affect components or data beyond the vulnerable authorization mechanism itself—potentially the underlying application server or operating system context—leading to arbitrary code execution. The CVSS impact subscores (C:H/I:H/A:H) indicate total loss of confidentiality, integrity, and availability. No specific function names, endpoints, or code paths are provided in the NVD description; therefore, the exact technical implementation of the authorization bypass cannot be detailed without further disclosure. The flaw is analogous to other AEM authorization bypass issues that have historically allowed unauthenticated attackers to invoke sensitive operations, but no public proof-of-concept or exploit code is available at this time.

Exploitation Scenarios

No public PoC is available; the attack chain is inferred from the vulnerability class (Incorrect Authorization leading to arbitrary code execution) and the CVSS vector.

1. Reconnaissance/target identification: An attacker identifies internet-facing Adobe Experience Manager instances using Shodan queries such as product:"Adobe Experience Manager" or http.title:"AEM". Common AEM paths like /content/dam, /crx/de, or /system/console may be probed to confirm the presence of AEM and its version.

2. Triggering the authorization flaw: The attacker sends a specifically crafted HTTP request to an endpoint that incorrectly enforces authorization. Because the flaw is CWE-863, the request likely bypasses intended access controls—for example, by manipulating request parameters, headers, or using an alternate HTTP method—to invoke functionality that should require authentication or higher privileges. The exact endpoint and parameter names are not disclosed in the available description.

3. Payload/execution method: Successful authorization bypass grants the attacker the ability to execute arbitrary code “in the context of the current user.” This could involve invoking a server-side script, deserializing malicious data, or leveraging an administrative function that is normally protected. The scope change indicates the attacker can potentially break out of the AEM application sandbox and affect the underlying host or other services.

4. Post-exploitation impact: With code execution, the attacker can read, modify, or delete sensitive data; establish persistence; pivot to internal networks; or completely compromise the AEM instance and any integrated systems. The changed scope (S:C) means the blast radius extends beyond AEM itself, potentially to the operating system and connected enterprise applications.

Impact Assessment

The business impact of CVE-2026-48382 is severe. Adobe Experience Manager is a core platform for digital asset management, web content delivery, and customer experience management in large enterprises. A CVSS score of 10.0 reflects maximum severity: confidentiality, integrity, and availability impacts are all rated High, meaning a successful exploit could result in complete data theft, unauthorized modification of content or configurations, and denial of service. The changed scope (S:C) indicates that exploitation can compromise resources beyond the vulnerable AEM component, such as the host operating system or adjacent services. The lack of required privileges or user interaction (PR:N/UI:N) makes this wormable in theory, though no evidence of active exploitation exists. Affected systems include any unpatched, internet-accessible AEM deployment. The blast radius can extend to integrated marketing platforms, customer databases, and internal networks if the AEM instance is not properly segmented. Given the CVSS vector, this vulnerability poses an urgent risk to organizations relying on AEM for public-facing digital experiences.

Detection Guidance

Sigma Rule

title: Potential Adobe Experience Manager Incorrect Authorization Exploitation (CVE-2026-48382)
id: 8f2c1a3e-4b5d-6e7f-8a9b-0c1d2e3f4a5b
status: experimental
description: Detects HTTP requests attempting to exploit an incorrect authorization vulnerability in Adobe Experience Manager that may lead to arbitrary code execution.
references:
  - https://nvd.nist.gov/vuln/detail/CVE-2026-48382
author: Threat Intelligence Team
date: 2026-06-15
tags:
  - attack.t1190
  - attack.initial_access
logsource:
  category: webserver
  product: apache
detection:
  selection_method:
    cs-method:
      - 'POST'
      - 'PUT'
      - 'GET'
  selection_uri:
    cs-uri-stem|contains:
      - '/content/'
      - '/crx/'
      - '/system/'
      - '/bin/'
  selection_status:
    sc-status:
      - 200
      - 500
  condition: selection_method and selection_uri and selection_status
falsepositives:
  - Legitimate administrative activity from authorized users.
  - Normal AEM content management operations.
level: high

YARA Rule

rule CVE_2026_48382_AEM_Authorization_Bypass
{
    meta:
        description = "Detects potential exploitation attempts against Adobe Experience Manager incorrect authorization (CVE-2026-48382)"
        author = "Threat Intelligence Team"
        date = "2026-06-15"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2026-48382"
        severity = "critical"
    strings:
        $aem_path1 = "/content/dam/" ascii wide nocase
        $aem_path2 = "/crx/de/" ascii wide nocase
        $aem_path3 = "/system/console/" ascii wide nocase
        $aem_path4 = "/bin/querybuilder" ascii wide nocase
        $auth_bypass1 = "Authorization: Bearer" ascii wide nocase
        $auth_bypass2 = "X-Forwarded-For" ascii wide nocase
        $exec_pattern1 = "java.lang.Runtime" ascii wide nocase
        $exec_pattern2 = "ProcessBuilder" ascii wide nocase
    condition:
        any of ($aem_path*) and any of ($auth_bypass*) and any of ($exec_pattern*)
}

Suricata IDS Rule

alert http any any -> any any (msg:"CVE-2026-48382 Adobe Experience Manager Incorrect Authorization Exploitation Attempt"; flow:to_server,established; content:"/content/"; http_uri; nocase; content:"/bin/"; http_uri; nocase; content:"POST"; http_method; content:"|0d 0a|"; within:100; classtype:attempted-admin; reference:cve,2026-48382; reference:url,nvd.nist.gov/vuln/detail/CVE-2026-48382; sid:10000001; rev:1;)

Elastic Detection

network where process.name == "java" and
  (http.request.method == "POST" or http.request.method == "PUT") and
  (http.request.uri : "/content/" or http.request.uri : "/crx/" or http.request.uri : "/system/") and
  http.response.status_code == 200

Splunk SPL Query

index=web sourcetype=access_combined
| search (uri_path="/content/*" OR uri_path="/crx/*" OR uri_path="/system/*" OR uri_path="/bin/*")
| search (method="POST" OR method="PUT")
| stats count by src_ip, uri_path, status, useragent
| where status=200 AND count > 10
| sort - count

Wazuh OSSEC Rule

<group name="web,appsec,">
  <rule id="100100" level="12">
    <if_sid>31100</if_sid>
    <url>/content/|/crx/|/system/|/bin/</url>
    <method>POST|PUT</method>
    <status>200</status>
    <description>CVE-2026-48382: Possible Adobe Experience Manager incorrect authorization exploitation attempt detected.</description>
    <mitre>
      <id>T1190</id>
    </mitre>
  </rule>
</group>

Mitigation & Patch Guidance

Patch confidence: 0/4 (UNPATCHED — no patch evidence from any tracked source).

1. Immediate mitigations:

   • Restrict network access to AEM instances: place them behind a reverse proxy or WAF, and block direct internet exposure of administrative interfaces (e.g., /crx, /system/console, /bin).
   • Implement strict access control rules to deny unauthenticated requests to sensitive endpoints.
   • Enable detailed logging and monitoring for anomalous requests to AEM paths, and alert on unexpected 200 responses from unauthenticated sessions.
   • If possible, apply virtual patching via WAF rules that block known exploitation patterns (e.g., unexpected HTTP methods or parameters).

2. Patch/upgrade steps:

   • No official patch is available as of this report. Monitor Adobe’s security advisories (https://helpx.adobe.com/security.html) for an official fix.
   • When a patch is released, immediately upgrade all affected AEM instances to the fixed version. Follow Adobe’s recommended upgrade procedures and test in a staging environment before production deployment.

3. Long-term hardening:

   • Enforce the principle of least privilege for all AEM services and users.
   • Conduct regular security assessments and penetration tests focused on authorization logic.
   • Implement runtime application self-protection (RASP) or similar controls to detect and block code execution attempts.
   • Adopt a robust patch management program to ensure timely application of security updates.

References

• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48382
• CWE-863: https://cwe.mitre.org/data/definitions/863.html
• Adobe Security Advisories: https://helpx.adobe.com/security.html
• MITRE ATT&CK T1190: https://attack.mitre.org/techniques/T1190/
• CISA KEV Catalog (not listed as of report date): https://www.cisa.gov/known-exploited-vulnerabilities-catalog