Answer in brief
CVE-2026-46637 records a Medium severity (CVSS 5.4) vulnerability in Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`. The current sources do not mark it as known exploited. The current feed maps twig/cssinliner-extra (generic), twig/markdown-extra (generic), twigphp/Twig (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 5.4. 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 twig/cssinliner-extra (generic), twig/markdown-extra (generic), twigphp/Twig (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| twig/cssinliner-extrageneric | < 3.26.0 | Not reported |
| twig/markdown-extrageneric | < 3.26.0 | Not reported |
| twigphp/Twiggeneric | < 3.26.0 | Not reported |
Published upstream
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
Twig is a template language for PHP. Prior to 3.26.0, several filters in twig/markdown-extra and twig/cssinliner-extra are registered with is_safe => [all], causing Twig to treat plain text or HTML output as safe in HTML, JavaScript, CSS, URL, and other contexts where the output is not properly escaped. This issue is fixed in version 3.26.0.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46637 records a Medium severity (CVSS 5.4) vulnerability in Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`. The current sources do not mark it as known exploited. The current feed maps twig/cssinliner-extra (generic), twig/markdown-extra (generic), twigphp/Twig (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 5.4. 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 twig/cssinliner-extra (generic), twig/markdown-extra (generic), twigphp/Twig (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| twig/cssinliner-extrageneric | < 3.26.0 | Not reported |
| twig/markdown-extrageneric | < 3.26.0 | Not reported |
| twigphp/Twiggeneric | < 3.26.0 | Not reported |
Published upstream
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
Twig is a template language for PHP. Prior to 3.26.0, several filters in twig/markdown-extra and twig/cssinliner-extra are registered with is_safe => [all], causing Twig to treat plain text or HTML output as safe in HTML, JavaScript, CSS, URL, and other contexts where the output is not properly escaped. This issue is fixed in version 3.26.0.
Quoted source text, attributed separately from HOL analysis.