CVE-2026-100117: Adobe Content Credentials improper input validation security feature bypass

CVE-2026-100117 · Severity: high · CVSS 7.5 · Published 2026-10-13

Adobe Content Credentials is a library used to verify and authenticate digital content credentials. Multiple improper input validation and certificate validation flaws allow attackers to bypass security features and gain unauthorized write access to files without user interaction, compromising the integrity of content authentication.

Technologies: Adobe C2pa, Adobe C2PA Tool, Adobe C2pa-Web, Adobe C2patool, Adobe Content Credentials JS SDK, Adobe Content Credentials Rust SDK (c2pa). Vendors: Adobe.

Quick answers

Is CVE-2026-100117 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-100117 being exploited in the wild.
How severe is CVE-2026-100117?
High severity, with a CVSS score of 7.5, published 13 October 2026.
Which products and versions are affected?
Adobe C2PA Tool c2patool-v0.27.15 and earlier; Adobe Content Credentials JS SDK @contentauth/c2pa-web@0.13.4 and earlier; Adobe Content Credentials Rust SDK (c2pa) c2pa-v0.90.15 and earlier.
Is there a fix for CVE-2026-100117?
Yes: fixed in Content Credentials Rust SDK c2pa-v0.91.1, C2PA Tool c2patool-v0.28.1, Content Credentials JS SDK @contentauth/c2pa-web@0.15.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-100117 attacked?
It is attacked over the network.
Am I affected by CVE-2026-100117?
Check whether you run Adobe C2pa, Adobe C2PA Tool, Adobe C2pa-Web or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Content Credentials Rust SDK c2pa-v0.91.1, C2PA Tool c2patool-v0.28.1, Content Credentials JS SDK @contentauth/c2pa-web@0.15.3

Technical details

CVE-2026-100117 and related CVEs involve improper input validation (CWE-20) and certificate validation (CWE-295) flaws in Adobe Content Credentials SDK components. These vulnerabilities allow network-based attacks with no authentication or user interaction required, enabling attackers to bypass security features and achieve unauthorized file system writes or modifications to authenticated content.

Affected products

  • Adobe Content Credentials Rust SDK (c2pa) c2pa-v0.90.15 and earlier
  • Adobe C2PA Tool c2patool-v0.27.15 and earlier
  • Adobe Content Credentials JS SDK @contentauth/c2pa-web@0.13.4 and earlier

Timeline

  • 2026-10-13: advisory: Adobe APSB26-163 security update released

References

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