Symfony UX: Information exposure via unescaped LIKE wildcards in EntitySearchUtil
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| symfony | ux | 3.0.0 to before 3.1.0; 2.2.0 to before 2.36.0 | 3.1.0, 2.36.0 | Patch available | CNA |
| — | symfony/ux-autocomplete (Packagist) | 2.2.0 to before 2.36.0 | 2.36.0 | Patch available | GHSA-946h-jp5c-8fvh |
| — | symfony/ux-autocomplete (Packagist) | 3.0.0 to before 3.1.0 | 3.1.0 | Patch available | GHSA-946h-jp5c-8fvh |
- ux Vendorsymfony Affected 3.0.0 to before 3.1.0; 2.2.0 to before 2.36.0 Fixed in 3.1.0, 2.36.0 Patch available CNA
- symfony/ux-autocomplete (Packagist) Vendor— Affected 2.2.0 to before 2.36.0 Fixed in 2.36.0 Patch available GHSA-946h-jp5c-8fvh
- symfony/ux-autocomplete (Packagist) Vendor— Affected 3.0.0 to before 3.1.0 Fixed in 3.1.0 Patch available GHSA-946h-jp5c-8fvh
Remediation
- Fix · CNA ux (symfony) Fixed in 3.1.0, 2.36.0
- Fix · GHSA-946h-jp5c-8fvh symfony/ux-autocomplete (Packagist) Fixed in 2.36.0 Advisory →
- Fix · GHSA-946h-jp5c-8fvh symfony/ux-autocomplete (Packagist) Fixed in 3.1.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-49211
- 2026-10-03 Alias added: GHSA-946h-jp5c-8fvh
References
More symfony Ux vulnerabilities
- TI-2026-36409 Symfony UX: Format-less date LiveProps parsed with the permissive DateTime constructor CVSS 4.0MEDIUM 6.9
- TI-2026-36413 Symfony UX: LiveComponentHydrator HMAC checksum lacks component and slot binding CVSS 4.0MEDIUM 6.9
- TI-2026-40330 Symfony UX: XSS in symfony/ux-icons via unsanitized SVG content in local files and Iconify on-demand responses CVSS 3.1MEDIUM 6.1
- TI-2026-36410 Symfony UX: Denial of service in symfony/ux-live-component via unbounded batch action requests CVSS 4.0MEDIUM 5.3
- TI-2026-36417 Symfony UX: XSS in symfony/ux-autocomplete via unescaped AJAX response data CVSS 4.0MEDIUM 5.1
- TI-2026-36411 Symfony UX: XSS in symfony/ux-live-component via attacker-controlled child component tag CVSS 4.0LOW 2.3
Sources
- CVE-2026-49211 · CVE Program
- CVE-2026-49211 · NVD
- FIRST EPSS
- GHSA-946h-jp5c-8fvh · GitHub Advisory Database · CC BY 4.0
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