Answer in brief
CVE-2026-55878 records a High severity (CVSS 7.8) vulnerability in Symfony: Path Traversal in symfony/ux-toolkit Allows Arbitrary File Write and Read via Crafted Recipe Manifest. The current sources do not mark it as known exploited. The current feed maps symfony/ux-toolkit (composer), symfony/ux-toolkit (composer), symfony/ux (generic). 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-2026-55878 records a High severity (CVSS 7.8) vulnerability in Symfony: Path Traversal in symfony/ux-toolkit Allows Arbitrary File Write and Read via Crafted Recipe Manifest. The current sources do not mark it as known exploited. The current feed maps symfony/ux-toolkit (composer), symfony/ux-toolkit (composer), symfony/ux (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 7.8. 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 symfony/ux-toolkit (composer), symfony/ux-toolkit (composer), symfony/ux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| symfony/ux-toolkitcomposer | >=2.32.0,<2.36.1 | 2.36.1 |
| symfony/ux-toolkitcomposer | >=3.0.0,<3.2.0 | 3.2.0 |
| symfony/uxgeneric | >= 2.32.0, < 2.36.1 || >= 3.0.0, < 3.2.0 | Not reported |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
Symfony UX is a JavaScript ecosystem for Symfony. From 2.32.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux:install console command installs files from a recipe kit by copying paths listed in a copy-files map, and because Path::isRelative() accepts paths like ../../../etc, a crafted or compromised kit can write attacker-controlled content to arbitrary locations or read local files outside the recipe directory. This issue is fixed in versions 2.36.1 and 3.2.0.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. 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 symfony/ux-toolkit (composer), symfony/ux-toolkit (composer), symfony/ux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| symfony/ux-toolkitcomposer | >=2.32.0,<2.36.1 | 2.36.1 |
| symfony/ux-toolkitcomposer | >=3.0.0,<3.2.0 | 3.2.0 |
| symfony/uxgeneric | >= 2.32.0, < 2.36.1 || >= 3.0.0, < 3.2.0 | Not reported |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
Symfony UX is a JavaScript ecosystem for Symfony. From 2.32.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux:install console command installs files from a recipe kit by copying paths listed in a copy-files map, and because Path::isRelative() accepts paths like ../../../etc, a crafted or compromised kit can write attacker-controlled content to arbitrary locations or read local files outside the recipe directory. This issue is fixed in versions 2.36.1 and 3.2.0.
Quoted source text, attributed separately from HOL analysis.