CVE-2026-71390: Adobe c2pa

Medium severity, CVSS 4.0. EPSS: 0.3% chance of exploitation in the next 30 days.

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized limited write access. Exploitation of this issue does not require user interaction.

Affected products

• Adobe c2pa: before 0.90.6 (fixed in 0.90.6)
• Adobe c2pa-Web: before 0.12.1 (fixed in 0.12.1)
• Adobe c2patool: before 0.27.6 (fixed in 0.27.6)

Published 2026-08-11. Last modified 2026-08-28.