Is CVE-2026-123262 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-123262 being exploited in the wild.

How severe is CVE-2026-123262?

Medium severity, with a CVSS score of 5.9, 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-2026-123262?

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-2026-123262 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-123262?

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.

CVE-2026-123262: Adobe Content Credentials SDK improper verification of cryptographic signature

CVE-2026-123262 · Severity: medium · CVSS 5.9 · Published 2026-11-10

Adobe Content Credentials SDK is a toolset for verifying the authenticity and provenance of digital content. A flaw in cryptographic signature verification allows attackers to bypass security features and gain unauthorized write access to data. No active exploits are known, but attackers with specific network or system conditions could forge content credentials.

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

Quick answers

Is CVE-2026-123262 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-123262 being exploited in the wild.
How severe is CVE-2026-123262?: Medium severity, with a CVSS score of 5.9, 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-2026-123262?: 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-2026-123262 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-123262?: 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

Improper verification of cryptographic signatures (CWE-347) in the Content Credentials SDK allows attackers to forge or bypass signature checks under high-complexity conditions. The vulnerability requires network access but has no preconditions of authentication or user interaction. An attacker can achieve integrity impact through unauthorized write access while avoiding detection.

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

https://www.adobe.com/trust/security/products/content-credentials-sdk/apsb26-184.html

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