symfony/cache Security Advisories for v3.4.11 (2)
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                        [CRITICAL] CVE-2019-18889: Forbid serializing AbstractAdapter and TagAwareAdapter instancesPKSA-w17b-j6zx-knvn CVE-2019-18889 GHSA-79gr-58r3-pwm3 Affected version: >=3.1.0,<3.2.0|>=3.2.0,<3.3.0|>=3.3.0,<3.4.0|>=3.4.0,<3.4.35|>=4.0.0,<4.1.0|>=4.1.0,<4.2.0|>=4.2.0,<4.2.12|>=4.3.0,<4.3.8 Reported by: 
 GitHub, FriendsOfPHP/security-advisories
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                        [HIGH] CVE-2019-10912: Prevent destructors with side-effects from being unserializedPKSA-y75j-trtt-wgfj CVE-2019-10912 GHSA-w2fr-65vp-mxw3 Affected version: >=3.1.0,<3.2.0|>=3.2.0,<3.3.0|>=3.3.0,<3.4.0|>=3.4.0,<3.4.26|>=4.0.0,<4.1.0|>=4.1.0,<4.1.12|>=4.2.0,<4.2.7 Reported by: 
 GitHub, FriendsOfPHP/security-advisories