Information disclosure in Symfony Ux
CVE-2026-49211
Symfony UX is a JavaScript ecosystem for Symfony. From 2.2.0 until 2.36.0 and 3.1.0, Symfony\UX\Autocomplete\Doctrine\EntitySearchUtil::addSearchClause() builds the LIKE expression used by the autocomplete endpoint by wrapping the client-supplied query in %...% without escaping SQL LIKE wildcards (%, _, \), allowing unauthenticated users to turn the public BaseEntityAutocompleteType endpoint into a broad matcher or blind boolean oracle against every column in default searchable_fields. This issue is fixed in versions 2.36.0 and 3.1.0.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Symfony Ux — versions >= 3.0.0, < 3.1.0, >= 2.2.0, < 2.36.0, 3.0.0
Weakness classification (CWE)
References
- github.com/symfony/ux/security/advisories/GHSA-946h-jp5c-8fvh (Vendor Advisory)
- github.com/symfony/ux/commit/725ab3d40689c91ff19ad2d01940a30007769214 (Patch)
- github.com/symfony/ux/releases/tag/v2.36.0 (Release Notes)
- github.com/symfony/ux/releases/tag/v3.1.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-49211?
- CVE-2026-49211 is a high-severity vulnerability in Symfony Ux, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-07-17.
- How severe is CVE-2026-49211?
- High severity. CVSS v3 base score is 7.5 out of 10.