Answer in brief
CVE-2026-122100 records a Medium severity (CVSS 5.5) vulnerability in CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347). The current sources do not mark it as known exploited. The current feed maps Adobe/C2PA Tool (generic), Adobe/Content Credentials Rust SDK (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Adobe/C2PA Tool (generic), Adobe/Content Credentials Rust SDK (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Adobe/C2PA Toolgeneric | >=0 <=c2patool-v0.28.5 | Not reported |
| Adobe/Content Credentials Rust SDKgeneric | >=0 <=c2pa-v0.91.10 | Not reported |
Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 10, 2026
CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature 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 requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.
Quoted source text, attributed separately from HOL analysis.