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Adobe ColdFusion EUVDEUVD-2026-56537

| CVE-2026-71384 CRITICAL
Incorrect Authorization (CWE-863)
2026-08-11 adobe GHSA-f5fp-2q73-jccr
9.6
CVSS 3.1 · Vendor: adobe
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Severity by source

Vendor (adobe) PRIMARY
9.6 CRITICAL
AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
vuln.today AI
9.6 CRITICAL

Adjacent admin-zone reachability gives AV:A with no auth (PR:N) or interaction; incorrect authorization yields high read/write (C:H/I:H) and DoS (A:H) with a changed scope (S:C).

3.1 AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
4.0 AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Primary rating from Vendor (adobe).

CVSS VectorVendor: adobe

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 11, 2026 - 17:23 vuln.today
CVE Published
Aug 11, 2026 - 16:30 nvd
CRITICAL 9.6

DescriptionCVE.org

is affected by an Incorrect Authorization vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized read and write access, potentially resulting in an application denial-of-service condition. The vulnerable component is restricted to an administrative network zone by default. Exploitation of this issue does not require user interaction. Scope is changed.

AnalysisAI

Security feature bypass in Adobe ColdFusion 2023 and 2025 lets attackers with adjacent network access defeat authorization checks (CWE-863, Incorrect Authorization) and obtain unauthorized read and write access, potentially forcing an application denial-of-service. The flaw carries a CVSS 9.6 (scope-changed) rating and requires no user interaction, though the vulnerable component sits inside an administrative network zone by default. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, so treat the 9.6 as high potential rather than confirmed active abuse.

Technical ContextAI

Adobe ColdFusion is a commercial rapid-application-development platform and Java-based application server (CFML runtime) used to build and host web applications; the affected builds are ColdFusion 2023 and ColdFusion 2025 per the CPE strings cpe:2.3:a:adobe:coldfusion_2023 and cpe:2.3:a:adobe:coldfusion_2025. The root cause is CWE-863 (Incorrect Authorization): an access-control decision is made incorrectly, so a request that should be denied is instead permitted. Because the CVSS vector marks scope as changed (S:C), the compromised authorization boundary allows impact on resources beyond the vulnerable component's own security authority, which is consistent with an administrative interface that governs broader server state.

RemediationAI

Patch available per vendor advisory: apply the ColdFusion 2023 and ColdFusion 2025 updates described in Adobe security bulletin APSB26-90 (https://helpx.adobe.com/security/products/coldfusion/apsb26-90.html) and confirm the exact fixed update level there, as no specific fix version is included in this dataset. Until patched, enforce the default posture by keeping the ColdFusion administrator/administrative component confined to a dedicated administrative network zone - restrict access with firewall rules or ACLs so only trusted management hosts on the adjacent segment can reach it, and remove any internet or general-LAN exposure of the admin endpoints; the trade-off is that legitimate remote administration must then be performed through a jump host or VPN. Because the attack vector is Adjacent, network segmentation is the highest-value compensating control here, but it does not substitute for the vendor patch.

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EUVD-2026-56537 vulnerability details – vuln.today

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