[MEDIUM] API Platform Core: Relation IRIs are not type-checked: a related resource can be denormalised as the wrong resource type (type confusion)

PKSA-8kfs-m8zw-ggzs CVE-2026-54164 GHSA-9rjg-x2p2-h68h

Affected version: >=4.3.0,<4.3.12|>=4.2.0,<4.2.26|<4.1.30

Reported by:
GitHub

[MEDIUM] API Platform Core vulnerable to cross-user attribute leak in JSON:API and HAL item normalizers due to missing isCacheKeySafe gate

PKSA-3ncz-km6v-5vjr CVE-2026-49858 GHSA-pjhx-3c3w-9v23

Affected version: >=4.3.0,<4.3.8|>=4.2.0,<4.2.25|>=2.6.0,<4.1.29

Reported by:
GitHub

[HIGH] GraphQL grant on a property might be cached with different objects

PKSA-gs8r-6kz6-pp56 CVE-2025-31485 GHSA-428q-q3vv-3fq3

Affected version: <3.4.17|>=4.0.0,<4.0.22|>=4.1.0,<4.1.5

Reported by:
FriendsOfPHP/security-advisories, GitHub

[HIGH] GraphQL query operations security can be bypassed

PKSA-gnn4-pxdg-q76m CVE-2025-31481 GHSA-cg3c-245w-728m

Affected version: <3.4.17|>=4.0.0,<4.0.22|>=4.1.0,<4.1.5

Reported by:
FriendsOfPHP/security-advisories, GitHub