Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-06-20 | 1 | Disclosure1 |
| 2026-06-24 | 1 | Patch1 |
Two Symfony UX CVEs, patch now. → CVE-2026-55877: ux_icon() renders unsanitized SVG → XSS → CVE-2026-55878: path traversal in Toolkit installer Upgrade to UX 3.2.0 or 2.36.1.
Post summary
Two new Symfony UX CVEs—CVE‑2026‑55877, an XSS via unsanitized SVG, and CVE‑2026‑55878, a path traversal in the Toolkit installer—have been disclosed. Users are urged to apply the patch by upgrading to UX 3.2.0 or 2.36.1.
🔴 Symfony, Path Traversal, #CVE-2026-55878 (Critical) -DC-Jun2026-527 https://dailycve.com/symfony-path-traversal-cve-2026-55878-critical-dc-jun2026-527/
Post summary
DailyCVE announces the discovery of a critical path‑traversal vulnerability in Symfony (CVE‑2026‑55878) without providing a PoC, exploit, or patch information.