GHSA-946h-jp5c-8fvh

Suggest an improvement
Source
https://github.com/advisories/GHSA-946h-jp5c-8fvh
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-946h-jp5c-8fvh/GHSA-946h-jp5c-8fvh.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-946h-jp5c-8fvh
Aliases
Published
2026-06-19T19:34:53Z
Modified
2026-09-10T03:50:49Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
symfony/ux-autocomplete: Information exposure via unescaped LIKE wildcards in EntitySearchUtil
Details

Description

Symfony\UX\Autocomplete\Doctrine\EntitySearchUtil::addSearchClause() builds the LIKE expression used by the autocomplete endpoint by wrapping the client-supplied query in %...% without escaping the SQL LIKE wildcards (%, _, \). The value is passed as a bound parameter, so this is not SQL injection, but a client can send % to match every row or use _ as a single-character wildcard.

Because searchable_fields defaults to every property of the entity and the autocomplete endpoint is public by default (BaseEntityAutocompleteType ships with security => false), an unauthenticated user can turn the endpoint into a broad matcher or a blind boolean oracle against every column of the entity, including columns the application never intended to expose.

Resolution

EntitySearchUtil now escapes \, %, and _ in the user-supplied query with addcslashes() and appends an explicit ESCAPE '\' clause to the generated LIKE expression, so those characters are matched literally. The exact-match words_query IN() branch is unchanged.

The patch for this issue is available here for branch 2.x (and forward-ported to 3.x).

Credits

Symfony would like to thank Pascal Cescon for reporting the issue and providing the fix.

Database specific 
{
    "cwe_ids":  [
        "CWE-200"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-19T19:34:53Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

Packagist / symfony/ux-autocomplete

Package

Name
symfony/ux-autocomplete
Purl
pkg:composer/symfony/ux-autocomplete

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.2.0
Fixed
2.36.0

Affected versions

v2.*
v2.2.0
v2.3.0
v2.4.0
v2.5.0
v2.6.0
v2.6.1
v2.7.0
v2.7.1
v2.8.0
v2.8.1
v2.9.0
v2.9.1
v2.10.0
v2.11.0
v2.11.1
v2.11.2
v2.12.0
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.14.0
v2.14.2
v2.15.0
v2.16.0
v2.17.0
v2.18.0
v2.19.0
v2.19.2
v2.20.0
v2.21.0
v2.22.0
v2.22.1
v2.23.0
v2.24.0
v2.25.0
v2.25.1
v2.25.2
v2.26.0
v2.26.1
v2.27.0
v2.28.0
v2.28.1
v2.28.2
v2.29.0
v2.29.1
v2.29.2
v2.30.0
v2.31.0
v2.32.0
v2.33.0
v2.34.0
v2.35.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-946h-jp5c-8fvh/GHSA-946h-jp5c-8fvh.json"

Packagist / symfony/ux-autocomplete

Package

Name
symfony/ux-autocomplete
Purl
pkg:composer/symfony/ux-autocomplete

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.0.0
Fixed
3.1.0

Affected versions

v3.*
v3.0.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-946h-jp5c-8fvh/GHSA-946h-jp5c-8fvh.json"