CVE-2026-100118 CAI Content Credentials | Improper Certificate Validation (CWE-295)

High 7.5 Published Updated

Attackers can bypass certificate validation to gain unauthorized write access in Adobe Content Credentials SDKs without user interaction.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-100118?

CVE-2026-100118 is a high-severity vulnerability in Adobe C2pa, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

CAI Content Credentials is affected by an Improper Certificate 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 does not require user interaction.

Weakness: CWE-295

Which versions are affected by CVE-2026-100118?

It affects 3 products.

Products include Adobe C2pa, Adobe C2pa-Web, Adobe C2patool.

How do I fix CVE-2026-100118?

No fix has been published for CVE-2026-100118 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-100118 being exploited?

There is no known exploitation of CVE-2026-100118 in the wild and no public exploit code.

All Adobe C2pa vulnerabilities

Sources

Also known as GHSA-338g-qwhq-hjph.

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