Adobe Security Bulletin

Security updates available for Adobe Content Authenticity Initiative (CAI) - Content Credentials | APSB26-53

Bulletin ID

Date Published

Priority

APSB26-53

May 12, 2026

3

Summary

Adobe has released security updates for Adobe Content Authenticity Initiative (CAI) - Content Credentials. This update addresses critical and important vulnerability that could result in application denial-of-service.

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

Affected versions

Product Affected version Platform
Content Credentials JS SDK @contentauth/c2pa-web@0.7.0 Windows, macOS, Linux, iOS, Android
Content Credentials Rust SDK c2pa-v0.78.2 Windows, macOS, Linux, iOS, Android

Solution

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

Product Updated version Platform Priority rating Availability
Content Credentials JS SDK
@contentauth/c2pa-web@0.7.1 Windows, macOS, Linux, iOS, Android 3 Release Notes
Content Credentials Rust SDK c2pa-v0.80.1 Windows, macOS, Linux, iOS, Android 3 Release Notes

Vulnerability Details

Vulnerability Category Vulnerability Impact Severity CVSS base score CVSS vector CVE Number
Uncontrolled Resource Consumption (CWE-400) Application denial-of-service Critical 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34665
Improper Input Validation (CWE-20) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34666
Integer Underflow (Wrap or Wraparound) (CWE-191) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34667
Improper Input Validation (CWE-20) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34668
Improper Input Validation (CWE-20) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34669
Improper Input Validation (CWE-20) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34670
Integer Overflow or Wraparound (CWE-190) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34671
Integer Underflow (Wrap or Wraparound) (CWE-191) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34672
Uncontrolled Resource Consumption (CWE-400) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34673
Uncontrolled Resource Consumption (CWE-400) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34677
Uncontrolled Resource Consumption (CWE-400) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34678
Improper Input Validation (CWE-20) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34679
Integer Overflow or Wraparound (CWE-190) Application denial-of-service Important 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34680

Acknowledgments

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

  • bau1u - CVE-2026-34665, CVE-2026-34666, CVE-2026-34667, CVE-2026-34668, CVE-2026-34669, CVE-2026-34670, CVE-2026-34671, CVE-2026-34672, CVE-2026-34673, CVE-2026-34677, CVE-2026-34678, CVE-2026-34679, CVE-2026-34680

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 us out here: https://hackerone.com/adobe.

 

For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com

Adobe, Inc.

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