Meta react-server-dom-webpack
At a glance
- Source
- NVD
- EPSS
- EPSS 2.58 % · percentile 85 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Meta
- NVD status
- Modified
Description
Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.
Weaknesses (CWE)
- CWE-502 — Deserialization of Untrusted Data
- CWE-400 — Uncontrolled Resource Consumption
- CWE-1284 — Improper Validation of Specified Quantity in Input
References
- https://www.facebook.com/security/advisories/cve-2026-23864
- https://access.redhat.com/security/cve/CVE-2026-23864
- https://bugzilla.redhat.com/show_bug.cgi?id=2433059
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23864.json
- https://access.redhat.com/errata/RHSA-2026:34608
- https://access.redhat.com/errata/RHSA-2026:13571
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-83fc-fqcc-2hmg — React Server Components have multiple Denial of Service Vulnerabilities
European references
- ENISA EUVD · EUVD-2026-4673
- GCVE · GCVE-0-2026-23864
Affected configurations (NVD CPE)
cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*≥ 19.0.0 < 19.0.4cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*≥ 19.1.0 < 19.1.5cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*≥ 19.2.0 < 19.2.4
Affected products
| Product | Versions |
|---|---|
| Meta · react-server-dom-webpack | affected 19.0.0 < 19.0.4 ; affected 19.1.0 < 19.1.5 ; affected 19.2.0 < 19.2.4 |
| Meta · react-server-dom-turbopack | affected 19.0.0 < 19.0.4 ; affected 19.1.0 < 19.1.5 ; affected 19.2.0 < 19.2.4 |
| Meta · react-server-dom-parcel | affected 19.0.0 < 19.0.4 ; affected 19.1.0 < 19.1.5 ; affected 19.2.0 < 19.2.4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |