CVE-2026-71389

Analyzed Analyzed - Analysis Complete

Integer Underflow in CAI Content Credentials Causes DoS

Publication date: 2026-08-11

Last updated on: 2026-08-28

Assigner: Adobe Systems Incorporated

Description

CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS Scores

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Meta Information

Published

2026-08-11

Last Modified

2026-08-28

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-71389

EUVD

EUVD-2026-56558

Affected Vendors & Products

Vendor	Product	Version / Range
adobe	c2pa	to 0.90.6 (exc)
adobe	c2pa-web	to 0.12.1 (exc)
adobe	c2patool	to 0.27.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-191	The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Attack-Flow Graph

Executive Summary

This vulnerability is an Integer Underflow (Wrap or Wraparound) issue in CAI Content Credentials. It allows an attacker to crash the application, causing a denial-of-service condition without requiring any user interaction.

Detection Guidance

This vulnerability is specific to Adobe CAI Content Credentials and may not have direct detection commands. Monitor application logs for crashes or unusual behavior. Check for updates from Adobe to patch the integer underflow issue. Use system monitoring tools to detect application denial-of-service conditions.

Impact Analysis

An attacker could exploit this flaw to make the affected application crash repeatedly, disrupting its normal operation. This could lead to service unavailability or forced downtime for users relying on the application.

Compliance Impact

This denial-of-service vulnerability could impact compliance by disrupting service availability, potentially violating availability requirements in GDPR or HIPAA. Downtime may lead to unauthorized access risks or failure to meet data protection obligations.

Mitigation Strategies

Apply the latest security patches or updates provided by Adobe for CAI Content Credentials to address the Integer Underflow vulnerability. Monitor Adobe's security advisories for updates and ensure your systems are running the patched versions.

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