GHSA-g2qj-pmxm-9f8f: User enumeration in authentication mechanisms

low Affects symfony/security-http, symfony/symfony. Feed 2026.10.29.4, updated 2026-10-29; published 2021-05-17; advisory modified 2024-12-02.

User enumeration in authentication mechanisms

Package: symfony/security-http Composer
Affected versions: >=5.1.0 and <5.2.8
Fixed in: 5.2.8
Severity: low
Exploitation: not on CISA KEV
Published: 2021-05-17
Source: osv.dev

References

User enumeration in authentication mechanisms

Package: symfony/symfony Composer
Affected versions: >=5.1.0 and <5.2.8
Fixed in: 5.2.8
Severity: low
Exploitation: not on CISA KEV
Published: 2021-05-17
Source: osv.dev

References

CWE-200

NVD record symfony/security-http advisories symfony/symfony advisories

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CVE-2016-4423 high Symphony Denial of Service Via Overlong Usernames same package: symfony/security-http
CVE-2021-21424 medium Prevent user enumeration using Guard or the new Authenticator-based Security same package: symfony/security-http
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