CVE-2025-67779It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service…
- 7.5HighCVSS base score
- 15.5%Exploitation in 30 daysEPSS · top 3.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Timeline
ID reserved
By Meta
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| MetaCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 15.5% · top 3.1% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Meta · react-server-dom-parcel
- affected 19.0.2 – ≤ 19.0.2
- affected 19.1.3 – ≤ 19.1.3
- affected 19.2.2 – ≤ 19.2.2
Meta · react-server-dom-turbopack
- affected 19.0.2 – ≤ 19.0.2
- affected 19.1.3 – ≤ 19.1.3
- affected 19.2.2 – ≤ 19.2.2
Meta · react-server-dom-webpack
- affected 19.0.2 – ≤ 19.0.2
- affected 19.1.3 – ≤ 19.1.3
- affected 19.2.2 – ≤ 19.2.2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmreact-server-dom-parcelGHSA-7gmr-mq3h-m5h9 (opens in a new tab)
- npmreact-server-dom-turbopackGHSA-7gmr-mq3h-m5h9 (opens in a new tab)
- npmreact-server-dom-webpackGHSA-7gmr-mq3h-m5h9 (opens in a new tab)
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-202926 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-7gmr-mq3h-m5h9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-67779)Record last updated .