Composer symfony/security-core has 5 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.
| CVE | Title | Severity | CVSS | Affected | Fixed in |
|---|---|---|---|---|---|
| CVE-2016-2403 | Symfony Authentication Bypass | critical | 9.8 | >=2.8.0 and <2.8.6 or >=3.0.0 and <3.0.6 | 2.8.6, 3.0.6 |
| CVE-2018-11407 | Symfony Authentication Bypass | critical | 9.8 | >=2.8.0 and <2.8.37 or >=3.0.0 and <3.3.17 or >=3.4.0 and <3.4.7 or >=4.0.0 and <4.0.7 or >=3.0.0 and <3.1.0 or >=3.1.0 and <3.2.0 or >=3.2.0 and <3.3.0 or >=3.3.0 and <3.3.17 | 2.8.37, 3.3.17, 3.4.7, 4.0.7 |
| CVE-2016-1902 | Symfony Cryptographic Vulnerability | high | 7.5 | >=2.4.0 and <2.6.13 or >=2.7.0 and <2.7.9 or >=2.4.0 and <2.5.0 or >=2.5.0 and <2.6.0 or >=2.6.0 and <2.6.13 | 2.6.13, 2.7.9 |
| CVE-2017-11365 | Symfony Incorrect Access Control | critical | 9.8 | >=2.7.30 and <2.7.32 or >=2.8.23 and <2.8.25 or >=3.2.10 and <3.2.12 or >=3.3.3 and <3.3.5 | 2.7.32, 2.8.25, 3.2.12, 3.3.5 |
| CVE-2021-21424 | Prevent user enumeration using Guard or the new Authenticator-based Security | medium | 5.3 | >=2.8.0 and <3.4.48 or >=4.0.0 and <4.4.23 or >=5.0.0 and <5.2.8 or >=2.8.0 and <3.0.0 or >=3.0.0 and <3.1.0 or >=3.1.0 and <3.2.0 or >=3.2.0 and <3.3.0 or >=3.3.0 and <3.4.0 or >=3.4.0 and <3.4.49 or >=4.0.0 and <4.1.0 or >=4.1.0 and <4.2.0 or >=4.2.0 and <4.3.0 or >=4.3.0 and <4.4.0 or >=4.4.0 and <4.4.24 or >=5.0.0 and <5.1.0 or >=5.1.0 and <5.2.0 or >=5.2.0 and <5.2.9 | 3.4.49, 4.4.24, 5.2.9 |
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