CVE-2026-48435 Adobe CVE debrief

Who should care

Organizations using Adobe CAI Content Credentials should prioritize patching this vulnerability to prevent potential denial-of-service attacks. This includes operators managing affected deployments, platform administrators, vulnerability management teams, and security teams responsible for ensuring the integrity of affected systems. They should review official advisories and assess their exposure to validate affected scope and severity.

Technical summary

CVE-2026-48435 is an Integer Underflow vulnerability in Adobe's CAI Content Credentials. This vulnerability 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. No user interaction is required for exploitation. The vulnerability affects multiple product versions, including c2pa, c2pa-web, and c2patool.

Defensive priority

Medium-priority defensive actions are recommended due to the potential for application denial-of-service through exploitation of this Integer Underflow vulnerability.

Recommended defensive actions

• Inventory and verify affected Adobe CAI Content Credentials versions, specifically checking for versions prior to 0.90.6 for c2pa, 0.12.1 for c2pa-web, and 0.27.6 for c2patool.
• Apply vendor-provided patches or updates to vulnerable systems as recommended by Adobe.
• Implement compensating controls such as monitoring for unusual application behavior.
• Consider exception tracking for systems that cannot be patched immediately.
• Review official advisories and assess exposure to validate affected scope and severity.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Evidence notes

The CVE-2026-48435 record indicates an Integer Underflow vulnerability in Adobe's CAI Content Credentials, potentially leading to application denial-of-service. Official records from CVE Program and NVD provide details. Evidence is limited, so defenders should verify affected versions, specifically checking for versions prior to 0.90.6 for c2pa, 0.12.1 for c2pa-web, and 0.27.6 for c2patool, and monitor for unusual application behavior.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.