CVE-2025-66415

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-66415
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66415.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-66415
Aliases
Published
2025-12-01T22:39:32.468Z
Modified
2025-12-05T10:21:57.507216Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
fastify-reply-from bypass of reply forwarding
Details

fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. This vulnerability is fixed in 12.5.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-441"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66415.json"
}
References

Affected packages

Git / github.com/fastify/fastify-reply-from

Affected ranges

Type
GIT
Repo
https://github.com/fastify/fastify-reply-from
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e740e22f55d14cfb53d32d4f1060ffca3ae1879e

Affected versions

v0.*

v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.4.1
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.5.0
v0.5.2
v0.5.3
v0.5.4
v0.6.0
v0.6.1
v0.6.2

v1.*

v1.0.0
v1.1.0

v10.*

v10.0.0

v11.*

v11.0.0
v11.0.1
v11.0.2

v12.*

v12.0.0
v12.0.1
v12.0.2
v12.1.0
v12.2.0
v12.3.0
v12.3.1
v12.4.0

v2.*

v2.0.0
v2.0.1
v2.2.0

v3.*

v3.0.0
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v3.2.0
v3.3.0
v3.4.0
v3.5.0

v4.*

v4.0.0
v4.18.0

v5.*

v5.0.0
v5.0.1
v5.0.2
v5.1.0
v5.2.0
v5.3.0

v6.*

v6.0.0
v6.0.1
v6.1.0
v6.2.0
v6.3.0
v6.4.0
v6.4.1
v6.4.2
v6.4.3
v6.5.0
v6.6.0

v7.*

v7.0.0
v7.0.1

v8.*

v8.0.0
v8.1.0
v8.2.0
v8.2.1
v8.3.0
v8.3.1
v8.4.0
v8.4.1
v8.4.2
v8.4.3

v9.*

v9.0.0
v9.0.1
v9.0.2
v9.1.0
v9.2.0
v9.3.0
v9.4.0
v9.5.0
v9.6.0
v9.7.0
v9.8.0