VDB
CVE-2026-33228
CVE-2026-33228
PUBLISHED
CVSS 8.899999618530273 HIGH
Prototype Pollution via parse() in NodeJS flatted
EPSS 0.07% · 21.6th percentile
Risk Scores
CVSS 4.0
8.899999618530273
CVSS: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
EPSS Score
0.07%
21.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| npm | flatted | 0, 0, 0 |
| webreflection | flatted | 0, 0, 0 |
| WebReflection | flatted | *, < 3.4.2, < 3.4.2 |
Exploit Intelligence
- CIRCL seen: CVE-2026-33228 (circl-sighting)
- CIRCL seen: CVE-2026-33228 (circl-sighting)
- https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802 (circl)
- https://github.com/WebReflection/flatted/releases/tag/v3.4.2 (circl)
- https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh (nist-nvd)
- pnpm-workspace.yaml (github-poc)
- pnpm-workspace.yaml (github-poc)
- seen_cves.json (github-poc)
- seen_cves.json (github-poc)
- seen_cves.json (github-poc)
…and 37 more exploits
Timeline
- Mar 19, 2026 CVE Published
- Mar 20, 2026 Security Advisory
- Mar 21, 2026 EPSS Score
- Mar 21, 2026 PoC Published
- Mar 22, 2026 EPSS Score
- Mar 22, 2026 Coalition ESS Score
- Mar 23, 2026 EPSS Score
- Mar 23, 2026 PoC Published
- Mar 24, 2026 EPSS Score
- Mar 25, 2026 CVE Updated
- Mar 25, 2026 EPSS Score
- May 18, 2026 EPSS Score
References
- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37405 advisory
- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37404 advisory
- https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh url
- https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802 url
- https://github.com/WebReflection/flatted/releases/tag/v3.4.2 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-33228 advisory
- https://github.com/WebReflection/flatted package
- https://www.ibm.com/support/pages/node/7270805 advisory
- https://www.ibm.com/support/pages/node/7270827 advisory
- https://www.ibm.com/support/pages/node/7270869 advisory
- https://www.ibm.com/support/pages/node/7270820 advisory
- https://www.ibm.com/support/pages/node/7270845 advisory
- https://www.ibm.com/support/pages/node/7270868 advisory
- https://www.ibm.com/support/pages/node/7270775 advisory
- https://www.ibm.com/support/pages/node/7270692 advisory
- https://advisory.splunk.com/advisories/SVD-2026-0512 advisory
- https://advisory.splunk.com/advisories/SVD-2026-0513 advisory
- https://advisory.splunk.com/advisories/SVD-2026-0509 advisory
- https://advisory.splunk.com/advisories/SVD-2026-0510 advisory
- https://advisory.splunk.com/advisories/SVD-2026-0505 advisory
…and 22 more