Medium 5.4Published Jul 17, 2026

CVE-2026-49216Symfony UX is a JavaScript ecosystem for Symfony.

Updated under an hour ago (2026-10-19 10:23 UTC)

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It affects symfony ux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for symfony ux

Exploited in the last 30 days

Symfony UX is a JavaScript ecosystem for Symfony. From 2.2.0 until 2.36.0 and 3.1.0, the Stimulus controller in symfony/ux-autocomplete renders AJAX response items in _createAutocompleteWithRemoteData() by interpolating the text field into HTML template literals (<div>${item[labelField]}</div>) rather than text, allowing attacker-controlled markup from user-supplied dropdown values to execute in the browser of any user who opens an autocomplete widget backed by the same data. This issue is fixed in versions 2.36.0 and 3.1.0.

CVSS: 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

symfony ux symfony:ux	from 2.2.0 before 2.36.0; 3.0.0	NVD

References

https://github.com/symfony/ux/commit/842ae54bc74de389299f975f01aafae272cb0019patch
https://github.com/symfony/ux/releases/tag/v2.36.0release-notes
https://github.com/symfony/ux/releases/tag/v3.1.0release-notes
https://github.com/symfony/ux/security/advisories/GHSA-mwqm-4fw3-cjvrvendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.