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Adobe ColdFusion CVE-2026-106089

| EUVDEUVD-2026-100667 HIGH
Incorrect Authorization (CWE-863)
2026-10-13 psirt@adobe.com GHSA-6cmf-m7fc-pwgr
8.8
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
    Obtain low-privileged ColdFusion account
  2. Delivery
    Invoke improperly authorized function
  3. Exploit
    Bypass authorization check (CWE-863)
  4. Execution
    Execute arbitrary code as current user
  5. Impact
    Cross scope to impact other resources

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

Exploitation requires the attacker to already possess a low-privileged authenticated account on an affected ColdFusion instance (PR:L), and per the vendor CVSS the attack vector is LOCAL (AV:L), meaning a pre-existing foothold or local/session access to the server is needed rather than purely remote reach. No user interaction is required (UI:N) and attack complexity is low (AC:L). Affected deployments are ColdFusion 2023 up to and including 2023.0.25 and ColdFusion 2025 up to and including 2025.0.13; instances patched beyond these versions are not vulnerable. The authenticated + local prerequisites are the key limiting factors that reduce realistic risk below a pre-auth network RCE, though the incorrect authorization (CWE-863) means the privilege barrier itself is what is being bypassed.

Impact

This is a genuinely serious flaw but with an important caveat that tempers raw-score panic. The vendor (Adobe PSIRT) CVSS:3.1 vector is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H (8.8 High), which models LOCAL attack vector, LOW complexity, LOW privileges required, no user interaction, a changed scope, and total C/I/A impact - i.e. an already-authenticated low-privilege user escalating into arbitrary code execution. Notably, the attack vector is LOCAL (AV:L), not network, yet the tags label this 'Authentication Bypass, RCE' and ColdFusion is a network-facing application server - this is a conflict worth flagging: AV:L implies the attacker already needs a foothold/session or local access, which substantially narrows real-world exposure compared with a pre-auth network RCE. No EPSS score, no CISA KEV listing, and no public POC were provided in the intelligence, so there is no public exploit identified at time of analysis and no evidence of active exploitation. SSVC-style reasoning: technical impact is total, but exploitation is 'none observed' and automatability is unlikely given the authenticated local prerequisite. Bottom line: a real priority for ColdFusion operators to patch (incorrect-authorization RCE with scope change is dangerous, and ColdFusion is a historically heavily-targeted product), but the LOCAL/PR:L prerequisites make this an escalation/post-compromise risk rather than an internet-wide mass-exploitation threat - unless the AV:L labeling is itself an error, which should be verified with Adobe advisory APSB26-144.

Exploit ScenarioDerived

An attacker who already holds a low-privileged authenticated account on an affected ColdFusion 2023 or 2025 server abuses the incorrect-authorization flaw (CWE-863) to perform an action they should not be allowed to, achieving arbitrary code execution in the context of the running user without any user interaction. Because scope is changed, the resulting code execution can affect resources beyond the originally authorized component. No public exploit code was identified in the provided data, so exploitation would currently require independent research or reverse-engineering of the patch.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 13, 2026

Arbitrary code execution in Adobe ColdFusion 2023 (up to and including 2023.0.25) and ColdFusion 2025 (up to and including 2025.0.13) is achievable by a low-privileged, locally positioned attacker who abuses an incorrect authorization flaw to escalate into code execution in the context of the current user. The assessed vector (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C, score 8.8) shows the barrier is a valid low-privileged account plus local/session reach to the server rather than unauthenticated network access, and no user interaction is needed. No public exploit code or confirmed active exploitation was identified at time of analysis; the practical risk is real but is gated by the authenticated-plus-local prerequisites, keeping it below a pre-authentication remote code execution scenario.

RemediationAI

Patch status is "Patch available per vendor advisory": Adobe has published security bulletin APSB26-144 (https://www.adobe.com/trust/security/products/coldfusion/apsb26-144.html) covering this issue, and remediation should follow its update instructions for the ColdFusion 2023 and 2025 tracks - the fix path is to upgrade past the affected boundaries of 2023.0.25 and 2025.0.13 to the corresponding updated releases named in the bulletin, since exact fix build numbers were not included in the supplied intelligence. Until patching is complete, compensating controls should target the two prerequisites: reduce the population of exploitable low-privileged accounts by reviewing and pruning ColdFusion administrative and RDS users, and tighten local/session reach to the server by restricting interactive logon and RDP to trusted administrators (trade-off: limits legitimate operator workflows and break-glass access, so ensure out-of-band console access is retained). Disable or lock down unused administrative surfaces such as the ColdFusion Administrator and RDS on internet-exposed or multi-tenant instances (trade-off: breaks developer tooling and remote IDE integrations), and restrict access to the ColdFusion Administrator by IP allowlist where feasible. Enable and monitor ColdFusion and OS audit logs for anomalous authorization decisions and unexpected child processes spawned by the ColdFusion service account, and run the service under a least-privilege OS account to contain post-exploitation impact, since the changed-scope nature of the flaw means code executes in the current user's context.

Affected VersionsENISA

ColdFusion 2023 0 ≤2023.0.25
ColdFusion 2025 0 ≤2025.0.13

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 root cause is CWE-863 (Incorrect Authorization): ColdFusion fails to correctly enforce authorization checks on an operation, so a user holding only low-privileged credentials can perform actions reserved for a higher-privileged context. Because the CVSS vector marks Scope as Changed (S:C), successful exploitation is assessed to affect resources beyond the vulnerable component's own security scope, which is consistent with arbitrary code execution escaping ColdFusion's intended privilege boundary rather than merely reading or modifying ColdFusion-managed data. The attack vector is Local (AV:L) with low complexity (AC:L) and no user interaction (UI:N), and the PR:L metric confirms an authenticated low-privileged foothold is required; the vendor's own tags describe the issue as an authentication bypass leading to RCE. The affected technology stack is the ColdFusion application server itself (server-side Java/CFML runtime), tracked under EUVD-2026-100667 and reported by Adobe's PSIRT. No specific CPE strings were supplied in the source data, so product identification relies on the Adobe advisory and the EUVD version ranges.

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Severity by source

Vendor (adobe) PRIMARY 8.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Authenticated low-privilege user (PR:L) bypasses authorization for code execution with no interaction (UI:N); retained vendor's AV:L though a web app server more plausibly implies AV:N - verify with Adobe.

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

Primary rating from Vendor (adobe).

CVSS VectorVendor: adobe

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

DescriptionCVE.org

ColdFusion is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.

Executive ViewAI

Why It Matters

Adobe ColdFusion 2023 (through 2023.0.25) and ColdFusion 2025 (through 2025.0.13) contain a high-severity authorization flaw that lets an attacker with a valid low-privileged account and local access to the server escalate to arbitrary code execution in the context of the current user. Because no vendor patch is currently available, any ColdFusion deployment that grants local or interactive access to non-administrative users carries elevated risk, and the affected servers often underpin customer-facing web applications and internal business workflows. Leadership should care because exploitation would occur with legitimate credentials, making it harder to detect, and could lead to data exposure, service disruption, or lateral movement from the compromised host.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict local/interactive access to ColdFusion servers to trusted administrators only; enforce least privilege on the ColdFusion service account and application roles; segment and firewall affected hosts; apply application allow-listing, file-integrity monitoring, and WAF/host-based detections for anomalous child processes; increase authentication and process-execution logging and review for signs of escalation.

Threat Intelligence Overview

EPSS Score
0.2%
Top 91% exploitable
Prevalence
Medium
Adobe ColdFusion is a common enterprise app server 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 0.2%
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
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
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.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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