Adobe Content Credentials SDK: Use of broken or risky cryptographic algorithm
Summary
Adobe Content Credentials SDK, including the Rust SDK (c2pa) and the C2PA Tool (c2patool), uses a broken or risky cryptographic algorithm (CWE-327). An attacker could bypass security features and gain unauthorized write access. The attack is rated high complexity and depends on conditions outside the attacker's control. No privileges or user interaction are required.
Affected
- Content Credentials Rust SDK (c2pa): up to and including c2pa-v0.91.10
- C2PA Tool (c2patool): up to and including c2patool-v0.28.5
Fixed in
- Content Credentials Rust SDK: c2pa-v0.91.11
- C2PA Tool: c2patool-v0.28.6
Workaround
Unknown. No workaround published; apply the update.
Exploitation
- Adobe is not aware of any exploits in the wild.
- No public proof of concept found.
- Affected algorithm and exact attack conditions: unknown.
Our recommendation
- Inventory all use of the Rust SDK or c2patool, including CI/CD pipelines and container images.
- Update to c2pa-v0.91.11 or c2patool-v0.28.6 (Adobe priority 3).
- Give priority to systems that rely on the output for provenance or authenticity decisions.
- Monitor Adobe security bulletin APSB26-184 for updates.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-184 www.adobe.com
- CVE Record CVE-2026-113572 www.cve.org
- Strix CVE-2026-113572 www.strix.ai
- OffSeq CVE-2026-113572 radar.offseq.com
- EUVD-2026-113572 vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 15:01.
Original description (NVD)
CAI Content Credentials is affected by a Use of a Broken or Risky Cryptographic Algorithm vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.