Lookup for vulnerable packages by Package URL.
| Purl | pkg:npm/fastify@3.19.0 |
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| Type | npm |
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| Namespace | |
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| Name | fastify |
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| Version | 3.19.0 |
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| Qualifiers |
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| Subpath | |
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| Is_vulnerable | true |
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| Next_non_vulnerable_version | 5.8.5 |
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| Latest_non_vulnerable_version | 5.8.5 |
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| Affected_by_vulnerabilities |
| 0 |
| url |
VCID-6ht9-gg8u-9qax |
| vulnerability_id |
VCID-6ht9-gg8u-9qax |
| summary |
Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.3, a denial-of-service vulnerability in Fastify’s Web Streams response handling can allow a remote client to exhaust server memory. Applications that return a ReadableStream (or Response with a Web Stream body) via reply.send() are impacted. A slow or non-reading client can trigger unbounded buffering when backpressure is ignored, leading to process crashes or severe degradation. This issue has been patched in version 5.7.3. |
| references |
| 0 |
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| reference_url |
https://hackerone.com/reports/3524779 |
| reference_id |
3524779 |
| reference_type |
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| scores |
| 0 |
| value |
3.7 |
| scoring_system |
cvssv3.1 |
| scoring_elements |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
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| 1 |
| value |
LOW |
| scoring_system |
generic_textual |
| scoring_elements |
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| 2 |
| value |
Track |
| scoring_system |
ssvc |
| scoring_elements |
SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-04T16:20:26Z/ |
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| url |
https://hackerone.com/reports/3524779 |
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| fixed_packages |
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| aliases |
CVE-2026-25224, GHSA-mrq3-vjjr-p77c
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| risk_score |
1.6 |
| exploitability |
0.5 |
| weighted_severity |
3.3 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-6ht9-gg8u-9qax |
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| 1 |
| url |
VCID-8p2p-977a-qqb6 |
| vulnerability_id |
VCID-8p2p-977a-qqb6 |
| summary |
Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.2, a validation bypass vulnerability exists in Fastify where request body validation schemas specified by Content-Type can be completely circumvented. By appending a tab character (\t) followed by arbitrary content to the Content-Type header, attackers can bypass body validation while the server still processes the body as the original content type. This issue has been patched in version 5.7.2. |
| references |
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| reference_url |
https://hackerone.com/reports/3464114 |
| reference_id |
3464114 |
| reference_type |
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| 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:H/A:N |
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| 1 |
| value |
HIGH |
| scoring_system |
generic_textual |
| scoring_elements |
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| 2 |
| value |
Track |
| scoring_system |
ssvc |
| scoring_elements |
SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-04T21:18:10Z/ |
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| url |
https://hackerone.com/reports/3464114 |
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| fixed_packages |
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| aliases |
CVE-2026-25223, GHSA-jx2c-rxcm-jvmq
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| risk_score |
4.0 |
| exploitability |
0.5 |
| weighted_severity |
8.0 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-8p2p-977a-qqb6 |
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| 2 |
| url |
VCID-f1g6-gvqq-6kbf |
| vulnerability_id |
VCID-f1g6-gvqq-6kbf |
| summary |
fastify is a fast and low overhead web framework, for Node.js. Affected versions of fastify are subject to a denial of service via malicious use of the Content-Type header. An attacker can send an invalid Content-Type header that can cause the application to crash. This issue has been addressed in commit `fbb07e8d` and will be included in release version 4.8.1. Users are advised to upgrade. Users unable to upgrade may manually filter out http content with malicious Content-Type headers. |
| references |
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| fixed_packages |
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| aliases |
CVE-2022-39288, GHSA-455w-c45v-86rg
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| risk_score |
4.0 |
| exploitability |
0.5 |
| weighted_severity |
8.0 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-f1g6-gvqq-6kbf |
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| 3 |
| url |
VCID-g4ar-bpke-2qc2 |
| vulnerability_id |
VCID-g4ar-bpke-2qc2 |
| summary |
Summary
When trustProxy is configured with a restrictive trust function (e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function), the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including connections from untrusted IPs. This allows an attacker connecting directly to Fastify (bypassing the proxy) to spoof both the protocol and host seen by the application.
Affected Versions
fastify <= 5.8.2
Impact
Applications using request.protocol or request.host for security decisions (HTTPS enforcement, secure cookie flags, CSRF origin checks, URL construction, host-based routing) are affected when trustProxy is configured with a restrictive trust function.
When trustProxy: true (trust everything), both host and protocol trust all forwarded headers — this is expected behavior. The vulnerability only manifests with restrictive trust configurations. |
| references |
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| fixed_packages |
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| aliases |
CVE-2026-3635, GHSA-444r-cwp2-x5xf
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-g4ar-bpke-2qc2 |
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| Fixing_vulnerabilities |
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| Risk_score | 4.0 |
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| Resource_url | http://public2.vulnerablecode.io/packages/pkg:npm/fastify@3.19.0 |
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