CVE-2026-75633 CAI Content Credentials | Improper Input Validation (CWE-20)

Medium 5.5 Published 22 Sep 2026 Updated 26 Sep 2026

An attacker can crash the application by tricking a user into visiting a malicious URL, causing a denial-of-service condition.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-75633?

CVE-2026-75633 is a medium-severity denial of service vulnerability in Adobe C2pa, published on 22 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

CAI Content Credentials is affected by an Improper Input Validation 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 requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.

Weakness: CWE-20

Which versions are affected by CVE-2026-75633?

It affects 2 products.

Products include Adobe C2pa, Adobe C2patool.

How do I fix CVE-2026-75633?

No fix has been published for CVE-2026-75633 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-75633 being exploited?

There is no known exploitation of CVE-2026-75633 in the wild and no public exploit code.

All Adobe C2pa vulnerabilities

Sources

Also known as GHSA-9ph8-pmhm-8hh4.