kritisch
CVE-2026-33228
flatted: Flatted: Prototype pollution vulnerability allows arbitrary code execution via crafted JSON.
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA8.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD, Red Hat. Niedriger laut GHSA (hoch).
Beschreibung
flatted is a circular JSON parser. Prior to version 3.4.2, the parse() function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the internal input buffer is a JavaScript Array, accessing it with the key "__proto__" returns Array.prototype via the inherited getter. This object is then treated as a legitimate parsed value and assigned as a property of the output object, effectively leaking a live reference to Array.prototype to the consumer. Any code that subsequently writes to that property will pollute the global prototype. This issue has been patched in version 3.4.2.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| Red Hat | org.keycloak-keycloak-parent | kein Fix angegeben |
| chainguard | arangodb-3.11, arangodb-3.12, authentik-2026.2 und 31 weitere | 3.11.14.3-r4 und 32 weitere |
| debian 11 | node-flatted | kein Fix angegeben |
| debian 12 | node-flatted | kein Fix angegeben |
| debian 13 | node-flatted | 3.2.7~ds-1+deb13u1 |
| debian 14 | node-flatted | 3.4.2~ds-1 |
| echo | node-flatted | 3.2.7~ds-1+deb13u1 |
| minimos | argo-workflows-3.7, argo-workflows-fips-3.7, nginx-proxy-manager-2 und 1 weitere | 3.7.12-r0 und 2 weitere |
| npm::GitHub Security Advisory npm | flatted | 3.4.2 |
| rapidfort debian 12 | node-flatted | 0:3.2.7~ds-1+deb13u1 |
| rapidfort debian 13 | node-flatted | 0:3.2.7~ds-1+deb13u1 |
| wolfi | eslint, kubeflow-katib, langfuse-3 und 4 weitere | 10.1.0-r0 und 6 weitere |
Alle 54 Einträge aus 12 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| Red Hat | org.keycloak-keycloak-parent | kein Fix angegeben |
| chainguard | arangodb-3.11 | 3.11.14.3-r4 |
| chainguard | arangodb-3.12 | 3.12.9.4-r5 |
| chainguard | authentik-2026.2 | 2026.2.4-r10 |
| chainguard | authentik-fips-2026.2 | 2026.2.4-r9 |
| chainguard | drupal-11.3 | 11.3.13-r3 |
| chainguard | eslint | 10.1.0-r0 |
| chainguard | gitlab-rails-ce-18.1 | 18.1.6-r27 |
| chainguard | gitlab-rails-ce-18.11 | 18.11.6-r11 |
| chainguard | gitlab-rails-ce-19.0 | 19.0.5-r12 |
| chainguard | gitlab-rails-ce-19.1 | 19.1.7-r6 |
| chainguard | gitlab-rails-ce-19.2 | 19.2.5-r2 |
| chainguard | gitlab-rails-ce-19.3 | 19.3.1-r6 |
| chainguard | gitlab-rails-ce-fips-18.1 | 18.1.6-r89 |
| chainguard | gitlab-rails-ce-fips-18.10 | 18.10.8-r8 |
| chainguard | gitlab-rails-ce-fips-18.11 | 18.11.7-r3 |
| chainguard | gitlab-rails-ce-fips-18.9 | 18.9.8-r8 |
| chainguard | gitlab-rails-ce-fips-19.0 | 19.0.5-r1 |
| chainguard | gitlab-rails-ce-fips-19.1 | 19.1.3-r1 |
| chainguard | gitlab-rails-ce-fips-19.2 | 19.2.5-r2 |
| chainguard | gitlab-rails-ce-fips-19.3 | 19.3.1-r3 |
| chainguard | kubeflow-katib | 0.19.0-r40 |
| chainguard | langfuse-2 | 2.95.12-r16 |
| chainguard | langfuse-3 | 3.163.0-r0 |
| chainguard | langfuse-fips-2 | 2.95.12-r19 |
| chainguard | langfuse-fips-3 | 3.162.0-r1 |
| chainguard | librechat | 0.8.4-r3 |
| chainguard | prism | 5.14.3-r13 |
| chainguard | renovate | 43.84.0-r1 |
| chainguard | semaphore | 2.18.12-r2 |
| chainguard | sqlpad | 7.5.7-r27 |
| chainguard | vitess-22 | 22.0.4-r9 |
| chainguard | vitess-23 | 23.0.3-r9 |
| chainguard | wazuh-dashboard | 4.14.6-r2 |
| chainguard | wazuh-dashboard-fips | 4.14.6-r1 |
| debian 11 | node-flatted | kein Fix angegeben |
| debian 12 | node-flatted | kein Fix angegeben |
| debian 13 | node-flatted | 3.2.7~ds-1+deb13u1 |
| debian 14 | node-flatted | 3.4.2~ds-1 |
| echo | node-flatted | 3.2.7~ds-1+deb13u1 |
| minimos | argo-workflows-3.7 | 3.7.12-r0 |
| minimos | argo-workflows-fips-3.7 | 3.7.12-r0 |
| minimos | nginx-proxy-manager-2 | 2.13.1-r0 |
| minimos | verdaccio | 6.8.0-r0 |
| npm::GitHub Security Advisory npm | flatted | 3.4.2 |
| rapidfort debian 12 | node-flatted | 0:3.2.7~ds-1+deb13u1 |
| rapidfort debian 13 | node-flatted | 0:3.2.7~ds-1+deb13u1 |
| wolfi | eslint | 10.1.0-r0 |
| wolfi | kubeflow-katib | 0.19.0-r40 |
| wolfi | langfuse-3 | 3.163.0-r0 |
| wolfi | prism | 5.14.3-r13 |
| wolfi | renovate | 43.84.0-r1 |
| wolfi | sqlpad | 7.5.7-r27 |
| wolfi | vitess-23 | 23.0.3-r9 |
Referenzen
- https://access.redhat.com/errata/RHSA-2026:13826
- https://access.redhat.com/errata/RHSA-2026:34342
- https://access.redhat.com/errata/RHSA-2026:9742
- https://access.redhat.com/security/cve/CVE-2026-33228
- https://bugzilla.redhat.com/show_bug.cgi?id=2449872
- https://github.com/WebReflection/flatted
- https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802
- https://github.com/WebReflection/flatted/releases/tag/v3.4.2