CVE-2026-49211
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
A vulnerability in Symfony UX allows unauthenticated users to turn the public autocomplete endpoint into a broad matcher or blind boolean oracle. The issue is due to missing escaping of SQL LIKE wildcards (% , _ , \) in the client-supplied query.
Risk Assessment
An attacker can exploit this flaw to search across all columns in default searchable fields, potentially leading to sensitive data leakage or database structure enumeration.
Recommendation
Upgrade Symfony UX to version 2.36.0 or 3.1.0 immediately, which include a fix for the LIKE injection vulnerability.
Other vulnerabilities in Symfony UX
See all- CVE-2026-49215Medium
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- CVE-2026-49212High
A vulnerability in Symfony UX allows an attacker to swap a signed data blob between components or slots, enabling the setting of read-only properties on a target component. Affected versions are from 2.8.0 to 2.36.0 and 3.1.0.
- CVE-2026-49210Medium
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- CVE-2026-49208Medium
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- CVE-2026-55878High
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- CVE-2026-55877Medium
A vulnerability in Symfony UX allows XSS via the ux_icon() Twig function, which marks output as safe (is_safe=['html']) and embeds SVG source verbatim. Unsanitized local SVG files or Iconify JSON responses can contain malicious scripts, event handlers, or dangerous URL schemes.
Original NVD description (English source)
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.