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Adobe ColdFusion CVE-2026-105994

| EUVDEUVD-2026-100670 HIGH
Incorrect Authorization (CWE-863)
2026-10-13 psirt@adobe.com GHSA-g55m-fxqp-rjrj
7.7
CVSS 3.1 · Vendor: adobe
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate with low-privileged ColdFusion account
  2. Exploit
    Send crafted request bypassing authorization check
  3. Execution
    Gain unauthorized cross-scope write access
  4. Impact
    Modify protected resources or security settings

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires the attacker to already possess a low-privileged authenticated account on the ColdFusion instance (CVSS PR:L), after which no user interaction is needed and the request is delivered over the network. Affected deployments are ColdFusion 2023 at or below update 2023.0.25 and ColdFusion 2025 at or below update 2025.0.13. The limiting factors are: valid low-privilege credentials must be held, and the ColdFusion application/admin interface must be network-reachable to the attacker. The exact feature or configuration flag that triggers the incorrect authorization is not disclosed in the description - verify the precise affected component against Adobe advisory APSB26-144 before building detections.

Impact

This is a moderate-priority issue rather than a drop-everything emergency, but it should not be dismissed. The vendor-supplied CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N, base 7.7) describes a network-reachable, low-complexity flaw requiring only low privileges and no user interaction, with a changed scope and high integrity impact - meaning an authenticated low-privileged user can cross an authorization boundary to write to resources they should not control. The CWE-863 (Incorrect Authorization) classification and 'unauthorized write access' description are consistent with the vector. However, several real-world risk signals are MISSING from the input: no EPSS probability is provided, there is no CISA KEV listing, and no proof-of-concept is referenced - so exploitation likelihood cannot be quantified from the data. The absence of confidentiality and availability impact (C:N/A:N) narrows this to an integrity/security-feature-bypass problem, which tempers raw-score alarm. ColdFusion is historically a frequent target of real-world attacks, so the PR:L barrier (attacker must already hold a low-privileged account) is the main mitigating factor; environments that expose ColdFusion admin/application accounts broadly should treat this as actionable. Net: a genuine authorization-bypass worth patching promptly, but not evidenced as actively exploited at analysis time.

Exploit ScenarioDerived

An attacker who already holds a low-privileged ColdFusion account (or compromised such credentials) sends a crafted request over the network that the server fails to authorize correctly, letting them write to resources outside their intended permission scope. Because the CVSS scope is changed, the unauthorized write can affect components beyond the attacker's original security context. No public exploit code is referenced, and no user interaction is required.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 13, 2026

Incorrect authorization (CWE-863) in Adobe ColdFusion 2023 through update 2023.0.25 and ColdFusion 2025 through update 2025.0.13 enables a low-privileged authenticated attacker to bypass security measures and gain unauthorized write access over the network without user interaction. This moderate-priority vulnerability has a CVSS 3.1 score of 7.7 (AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N), reflecting a scope change and high integrity impact. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis; Adobe advisory APSB26-144 provides mitigation guidance.

RemediationAI

Patch available per vendor advisory: apply the fixes in Adobe APSB26-144 for ColdFusion 2023 and 2025 (consult the advisory for exact patched versions). Until patching can occur, restrict network access to the ColdFusion administrative interface and application endpoints to trusted IP ranges or management networks, acknowledging that this may disrupt legitimate remote administration. Enforce least privilege on ColdFusion accounts, monitor logs for anomalous write operations from low-privileged users, and consider temporarily restricting any features that allow low-privilege write actions, though the exact feature is not identified in available data. Verify the precise affected component against the advisory to tailor detections.

Affected VersionsENISA

ColdFusion 2025 0 ≤2025.0.13
ColdFusion 2023 0 ≤2023.0.25

Affected Packages

euvd coldfusion_2023 no fix
euvd coldfusion_2025 no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability is an instance of CWE-863 (Incorrect Authorization), which occurs when a system fails to correctly enforce access controls, allowing actions that should be restricted. In ColdFusion, this flaw permits an attacker with existing low-privilege credentials (CVSS PR:L) to perform unauthorized write operations, altering data or configurations they should not access. The CVSS scope change (S:C) indicates that the vulnerable component impacts resources beyond its security scope, potentially affecting other ColdFusion components or the underlying host. The attack vector is network-based (AV:N) with low complexity (AC:L), and no user interaction (UI:N) is required. The exact vulnerable feature or configuration flag is not disclosed in available data; the precise affected component must be verified against Adobe advisory APSB26-144 before building detections.

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Severity by source

Vendor (adobe) PRIMARY 7.7 HIGH
AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
vuln.today AI 7.7 HIGH

Network-reachable with low complexity and no UI; attacker must hold a low-privileged account so PR:L; integrity-only write across a changed scope, hence I:H/S:C and C:N/A:N.

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

Primary rating from Vendor (adobe).

CVSS VectorVendor: adobe

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

DescriptionCVE.org

ColdFusion is affected by an Incorrect Authorization vulnerability that could result in a Security feature bypass. A low-privileged attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction. Scope is changed.

Executive ViewAI

Why It Matters

Adobe ColdFusion versions 2023 (through update 2023.0.25) and 2025 (through update 2025.0.13) are affected by a high-severity authorization bypass that could allow an authenticated attacker to gain unauthorized write access, potentially compromising data integrity. Although no public exploit identified at time of analysis, the vulnerability's scope change and high integrity impact warrant immediate attention. Leadership should prioritize applying mitigation guidance from Adobe advisory APSB26-144 to protect affected systems.

Business Impact: High
Compensating Controls

Apply mitigation guidance from Adobe advisory APSB26-144; restrict network access to ColdFusion management interfaces; enforce least privilege; and monitor for unauthorized write activity.

Threat Intelligence Overview

EPSS Score
0.4%
Top 70% exploitable
Prevalence
Medium
Enterprise app server, common in legacy/business deployments but not ubiquitous
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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