CVE-2026-48436: CAI Content Credentials | Improper Input Validation (CWE-20)

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-08-28
Weakness: CWE-20

Description

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 write access. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.

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

How to fix

Upgrade to a fixed version: Adobe C2Pa 0.90.6; Adobe C2Pa-Web 0.12.1; Adobe C2Patool 0.27.6. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-111.html

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