CVE-2026-34673 CAI Content Credentials | Uncontrolled Resource Consumption (CWE-400)
An attacker can exhaust system resources to cause a denial-of-service condition in applications using the Content Credentials SDK.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34673?
CVE-2026-34673 is a medium-severity denial of service vulnerability in Adobe C2pa, published on 12 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
CAI Content Credentials versions [email protected], c2pa-v0.78.2 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.
Weakness: CWE-400
Which versions are affected by CVE-2026-34673?
It affects 2 products.
Products include Adobe C2pa, Adobe C2pa-Web.
How do I fix CVE-2026-34673?
No fix has been published for CVE-2026-34673 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-2026-34673 being exploited?
There is no known exploitation of CVE-2026-34673 in the wild and no public exploit code.
Other vulnerabilities in Adobe C2pa
- CVE-2026-95634 CAI Content Credentials | Server-Side Request Forgery (SSRF) (CWE-918)
- CVE-2026-48290 CAI Content Credentials | Server-Side Request Forgery (SSRF) (CWE-918)
- CVE-2026-100113 CAI Content Credentials | Improper Input Validation (CWE-20)
- CVE-2026-100114 CAI Content Credentials | Improper Access Control (CWE-284)
- CVE-2026-100115 CAI Content Credentials | Improper Access Control (CWE-284)
Sources
Also known as GHSA-fmmj-449g-8xvh.