CVE-2026-48387 Adobe CVE debrief

Who should care

Organizations using Adobe CAI Content Credentials, specifically versions prior to 0.90.6 for c2pa, 0.12.1 for c2pa-web, and 0.27.6 for c2patool, should be aware of this vulnerability and take necessary defensive actions to prevent potential denial-of-service conditions.

Technical summary

The CVE-2026-48387 vulnerability is an Integer Overflow or Wraparound issue in Adobe's CAI Content Credentials. This vulnerability could result in an application denial-of-service, allowing an attacker to crash the application without requiring user interaction. The vulnerability is confirmed to exist in various versions of c2pa, c2pa-web, and c2patool, specifically those prior to 0.90.6, 0.12.1, and 0.27.6 respectively.

Defensive priority

Medium-priority defensive actions are recommended due to the potential for application denial-of-service through exploitation of this Integer Overflow or Wraparound 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 abnormal application behavior.
• Consider exception tracking for systems that cannot be immediately patched.
• Review and update incident response plans to include procedures for handling potential exploitation attempts.
• Conduct a thorough risk assessment to prioritize patching based on the criticality of affected systems.
• Engage with Adobe's support for additional guidance on mitigation strategies.

Evidence notes

The CVE-2026-48387 vulnerability in Adobe's CAI Content Credentials could lead to an application denial-of-service due to an Integer Overflow or Wraparound issue. Official records indicate that exploitation does not require user interaction and could result in a denial-of-service condition by crashing the application. Evidence from the NVD and Adobe's PSIRT confirms the vulnerability's existence and provides details on affected versions.

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.