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Package Instance

Lookup for vulnerable packages by Package URL.

Purlpkg:npm/react-server-dom-turbopack@19.0.4
Typenpm
Namespace
Namereact-server-dom-turbopack
Version19.0.4
Qualifiers
Subpath
Is_vulnerablefalse
Next_non_vulnerable_version19.0.5
Latest_non_vulnerable_version19.3.0-canary-06fcc8f3-20251009
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-bwdv-fw3h-dfce
vulnerability_id VCID-bwdv-fw3h-dfce
summary 
React Server Components have multiple Denial of Service Vulnerabilities
## Impact

It was found that the fixes to address DoS in React Server Components were incomplete and we found multiple denial of service vulnerabilities still exist in React Server Components.

We recommend updating immediately.

The vulnerability exists in versions 19.0.0, 19.0.1, 19.0.2, 19.0.3, 19.1.0, 19.1.1, 19.1.2, 19.1.3, 19.1.4, 19.2.0, 19.2.1, 19.2.2, 19.2.3 of:

- [react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack)  
- [react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel)  
- [react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme)

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.

## Patches

Fixes were back ported to versions 19.0.4, 19.1.5, and 19.2.4.

If you are using any of the above packages please upgrade to any of the fixed versions immediately.

If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.

## References

See the [blog post](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components) for more information and upgrade instructions.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23864.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23864.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-23864
reference_id
reference_type
scores
0
value 0.01395
scoring_system epss
scoring_elements 0.80341
published_at 2026-04-02T12:55:00Z
1
value 0.01456
scoring_system epss
scoring_elements 0.80881
published_at 2026-04-24T12:55:00Z
2
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scoring_system epss
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published_at 2026-04-04T12:55:00Z
3
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scoring_system epss
scoring_elements 0.80787
published_at 2026-04-07T12:55:00Z
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scoring_system epss
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published_at 2026-04-08T12:55:00Z
5
value 0.01456
scoring_system epss
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published_at 2026-04-09T12:55:00Z
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scoring_system epss
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scoring_system epss
scoring_elements 0.80856
published_at 2026-04-18T12:55:00Z
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value 0.01456
scoring_system epss
scoring_elements 0.80858
published_at 2026-04-21T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-23864
2
reference_url https://github.com/facebook/react
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/facebook/react
3
reference_url https://github.com/facebook/react/security/advisories/GHSA-83fc-fqcc-2hmg
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
2
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scoring_system generic_textual
scoring_elements
url https://github.com/facebook/react/security/advisories/GHSA-83fc-fqcc-2hmg
4
reference_url https://nvd.nist.gov/vuln/detail/CVE-2026-23864
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2026-23864
5
reference_url https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
6
reference_url https://www.facebook.com/security/advisories/cve-2026-23864
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-01-26T20:26:03Z/
url https://www.facebook.com/security/advisories/cve-2026-23864
7
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2433059
reference_id 2433059
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2433059
8
reference_url https://github.com/advisories/GHSA-83fc-fqcc-2hmg
reference_id GHSA-83fc-fqcc-2hmg
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-83fc-fqcc-2hmg
fixed_packages
0
url pkg:npm/react-server-dom-turbopack@19.0.4
purl pkg:npm/react-server-dom-turbopack@19.0.4
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.0.4
1
url pkg:npm/react-server-dom-turbopack@19.1.5
purl pkg:npm/react-server-dom-turbopack@19.1.5
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.1.5
2
url pkg:npm/react-server-dom-turbopack@19.2.4
purl pkg:npm/react-server-dom-turbopack@19.2.4
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.2.4
aliases CVE-2026-23864, GHSA-83fc-fqcc-2hmg
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-bwdv-fw3h-dfce
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.0.4