Adobe Security Bulletin

Last updated on Sep 3, 2026

Security updates available for Adobe ColdFusion | APSB26-90

Bulletin ID

Date published

Priority

APSB26-90

August 11, 2026

1

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Summary

Adobe has released a security update for ColdFusion versions 2025 and 2023. This update resolves critical and important vulnerabilities that could result in arbitrary code execution, privilege escalation, security feature bypass, application denial-of-service, and memory exposure.

Adobe is not aware of any exploits in the wild for any of the issues addressed in this update.

Affected Versions

Product

Update number

Platform

ColdFusion 2025

2025.0.11 and earlier versions

All

ColdFusion 2023

2023.0.22 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

2025.0.12

All

1

Tech Note

ColdFusion 2023

2023.0.23

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

Vulnerability category

Vulnerability impact

Severity

CVSS base score

CVSS vector

CVE number

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)

Arbitrary code execution

Critical

10.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVE-2026-48362

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') (CWE-95)

Arbitrary code execution

Critical

9.9

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVE-2026-48273

Incorrect Authorization (CWE-863)

Application denial-of-service

Critical

9.6

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVE-2026-71384

Cross-site Scripting (XSS) (CWE-79)

Arbitrary code execution

Critical

8.8

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVE-2026-71386

Improper Input Validation (CWE-20)

Privilege escalation

Critical

8.7

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVE-2026-21273

Incorrect Authorization (CWE-863)

Arbitrary code execution

Critical

8.8

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2026-71387

Incorrect Authorization (CWE-863)

Security feature bypass

Critical

8.4

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVE-2026-71385

Use of Hard-coded Cryptographic Key (CWE-321)

Security feature bypass

Critical

8.2

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVE-2026-34635

Heap-based Buffer Overflow (CWE-122)

Arbitrary code execution

Critical

8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2026-48440

Improper Input Validation (CWE-20)

Security feature bypass

Critical

8.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVE-2026-21279

Incorrect Authorization (CWE-863)

Privilege escalation

Critical

7.8

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2026-25652

Use of a Broken or Risky Cryptographic Algorithm (CWE-327)

Memory exposure

Critical

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2026-48386

Incorrect Authorization (CWE-863)

Security feature bypass

Important

7.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVE-2026-71383

Improper Authentication (CWE-287)

Privilege escalation

Important

7.1

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVE-2026-83961

Incorrect Authorization (CWE-863)

Application denial-of-service

Important

6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48375

Improper Encoding or Escaping of Output (CWE-116)

Security feature bypass

Important

5.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CVE-2026-48376

Improper Input Validation (CWE-20)

Security feature bypass

Important

4.9

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48384

Note

Effective August 11, 2026, Adobe may assign a single CVE identifier to internally discovered vulnerabilities with the same severity rating and CWE category when a release includes systemic fixes.

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Acknowledgements:

AnirudhAnand (a0xnirudh) — CVE-2026-71386

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

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

CardTitle

APSB26-90

CardDescription

Priority 1 Security update

CardImage

Created

2026-08-11