Answer in brief
CVE-2026-73426 records a Medium severity (CVSS 4.6) vulnerability in Trix: Stored XSS vulnerability through serialized attributes. The current sources do not mark it as known exploited. The current feed maps basecamp/trix (generic), trix (npm), trix (npm), action_text-trix (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-73426 records a Medium severity (CVSS 4.6) vulnerability in Trix: Stored XSS vulnerability through serialized attributes. The current sources do not mark it as known exploited. The current feed maps basecamp/trix (generic), trix (npm), trix (npm), action_text-trix (rubygems) and additional mapped packages. 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 4.6. 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 basecamp/trix (generic), trix (npm), trix (npm), action_text-trix (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| basecamp/trixgeneric | < 2.1.17 | Not reported |
| trixnpm | >=0 <2.1.17 | 2.1.17 |
| trixnpm | <2.1.17 | 2.1.17 |
| action_text-trixrubygems | >=0 <2.1.17 | 2.1.17 |
| action_text-trixrubygems | <2.1.17 | 2.1.17 |
Published upstream
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17.
Quoted source text, attributed separately from HOL analysis.
CVSS is 4.6. 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 basecamp/trix (generic), trix (npm), trix (npm), action_text-trix (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| basecamp/trixgeneric | < 2.1.17 | Not reported |
| trixnpm | >=0 <2.1.17 | 2.1.17 |
| trixnpm | <2.1.17 | 2.1.17 |
| action_text-trixrubygems | >=0 <2.1.17 | 2.1.17 |
| action_text-trixrubygems | <2.1.17 | 2.1.17 |
Published upstream
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17.
Quoted source text, attributed separately from HOL analysis.