CVE-2026-123260: Adobe Content Credentials SDK improper input validation in security feature

CVE-2026-123260 · Severity: medium · CVSS 4 · Published 2026-11-10

Adobe Content Credentials SDK is a library that authenticates and verifies digital media assets. An improper input validation flaw allows attackers to bypass security features and gain unauthorized write access to content credentials without user interaction, potentially modifying authenticated media claims.

Technologies: Adobe C2PA Tool, Adobe Content Credentials Rust SDK. Vendors: Adobe.

Quick answers

Is CVE-2026-123260 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-123260 being exploited in the wild.
How severe is CVE-2026-123260?
Medium severity, with a CVSS score of 4, published 10 November 2026.
Which products and versions are affected?
Adobe C2PA Tool c2patool-v0.28.5 and earlier; Adobe Content Credentials Rust SDK c2pa-v0.91.10 and earlier.
Is there a fix for CVE-2026-123260?
Yes: fixed in Content Credentials Rust SDK c2pa-v0.91.11, C2PA Tool c2patool-v0.28.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-123260 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-123260?
Check whether you run Adobe C2PA Tool or Adobe Content Credentials Rust SDK 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-v0.91.11, C2PA Tool c2patool-v0.28.6

Technical details

CVE-2026-123260 is an improper input validation vulnerability (CWE-20) in Adobe's content credentials library that enables security feature bypass through local access. The flaw requires no user interaction and can result in limited integrity compromise through unauthorized writes to the local file system.

Affected products

  • Adobe Content Credentials Rust SDK c2pa-v0.91.10 and earlier
  • Adobe C2PA Tool c2patool-v0.28.5 and earlier

Timeline

  • 2026-11-10: disclosed

References

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