Adobe Security Bulletin

Last updated on Apr 14, 2026

Security updates available for Adobe ColdFusion | APSB26-38

Bulletin ID

Date published

Priority

APSB26-38

April 14, 2026

1

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Summary

Adobe has released security updates for ColdFusion versions 2025 and 2023. These updates resolve critical and moderate vulnerabilities that could lead to arbitrary code execution, application denial-of-service, arbitrary file system read, and security feature bypass.

Adobe is not aware of any exploits in the wild for any of the issues addressed in these updates.

Affected versions

Product

Update number

Platform

ColdFusion 2025

Update 6 and earlier versions

All

ColdFusion 2023

Update 18 and earlier versions

All

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Solution

Adobe categorizes these updates with the following priority rating and recommends users update their installations to the newest versions:

Product

Updated Version

Platform

Priority rating

Availability

ColdFusion 2025

Update 7

All

1

Tech Note

ColdFusion 2023

Update 19

All

1

Tech Note

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Note

For security reasons, we strongly recommend to use latest mysql java connector. For more information on its usage, please refer to: https://helpx.adobe.com/coldfusion/kb/coldfusion-configuring-mysql-jdbc.html

See the updated serial filter documentation for more details on protection against insecure deserialization attacks: https://helpx.adobe.com/coldfusion/kb/coldfusion-serialfilter-file.html

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Vulnerability Details

CVE-2026-34619

Vulnerability category: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Vulnerability impact: Security feature bypass
Severity: Critical
CVSS base score: 7.7
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVE-2026-27304

Vulnerability category: Improper Input Validation (CWE-20)
Vulnerability impact: Arbitrary code execution
Severity: Critical
CVSS base score: 9.3
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVE-2026-27305

Vulnerability category: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Vulnerability impact: Arbitrary file system read
Severity: Critical
CVSS base score: 8.6
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVE-2026-27282

Vulnerability category: Improper Input Validation (CWE-20)
Vulnerability impact: Security feature bypass
Severity: Critical
CVSS base score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVE-2026-27306

Vulnerability category: Improper Input Validation (CWE-20)
Vulnerability impact: Arbitrary code execution
Severity: Critical
CVSS base score: 8.4
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVE-2026-27307

Vulnerability category: Uncontrolled Resource Consumption (CWE-400)
Vulnerability impact: Application denial-of-service
Severity: Moderate
CVSS base score: 2.4
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVE-2026-27308

Vulnerability category: Uncontrolled Resource Consumption (CWE-400)
Vulnerability impact: Application denial-of-service
Severity: Moderate
CVSS base score: 2.4
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Acknowledgements:

Adobe would like to thank the following researchers for reporting this issue and for working with Adobe to help protect our customers:

AnirudhAnand (a0xnirudh) -- CVE-2026-27304
nbxiglk -- CVE-2026-27306
Jonathan Lein of TrendAI Research -- CVE-2026-27282, CVE-2026-34619, CVE-2026-27305
Idris_Tester092004 (tester092004) -- CVE-2026-27307, CVE-2026-27308

NOTE: Adobe has a public bug bounty program with Intigriti. If you are interested in working with Adobe as an external security researcher, please check out https://app.intigriti.com/programs/adobe/adobepublic/detail

Note

Adobe recommends updating your ColdFusion JDK/JRE LTS version to the latest update release as a secure practice. The ColdFusion downloads page is regularly updated to include the latest Java installers for the JDK version your installation supports as per the matrices below:

For instructions on how to use an external JDK, view Change ColdFusion JVM.

Adobe also recommends applying the security configuration settings included in the ColdFusion Security documentation as well as review the respective Lockdown guides.

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For more information, visit https://www.adobe.com/trust/security/bug-bounty.html, or email PSIRT@adobe.com

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CardTitle

APSB26-38

CardDescription

Priority 1 Security update

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