CVE-2026-49211Network attack vector

Information exposure via unescaped LIKE wildcards

Published Jul 17, 2026 · Updated Jul 17, 2026

Information exposure in Symfony UX Autocomplete 2.2.0 through 2.35.x and 3.0.x allows remote attackers to infer entity data via queries. EntitySearchUtil::addSearchClause() places the client query between percent signs in a bound LIKE parameter without escaping percent, underscore, or backslash, broadening matches across the default searchable fields. The BaseEntityAutocompleteType endpoint is public by default, so unauthenticated requests can enumerate rows or use response differences as a blind boolean oracle against entity columns.

CVSS severity6.9
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Symfony UX Autocomplete 2.2.0 through 2.35.x and 3.0.x allows remote attackers to infer entity data via queries. EntitySearchUtil::addSearchClause() places the client query between percent signs in a bound LIKE parameter without escaping percent, underscore, or backslash, broadening matches across the default searchable fields. The BaseEntityAutocompleteType endpoint is public by default, so unauthenticated requests can enumerate rows or use response differences as a blind boolean oracle against entity columns.

The record

CVE
CVE-2026-49211
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
Symfony
Product
Symfony UX
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.2.0, < 2.36.0
  2. Affected versionversion=>= 3.0.0, < 3.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Symfony · Symfony UXversion=>= 2.2.0, < 2.36.0; version=>= 3.0.0, < 3.1.0

Published CVSS scores

6.9GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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