CVE-2025-66457

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Source
https://cve.org/CVERecord?id=CVE-2025-66457
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66457.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-66457
Aliases
Related
Published
2025-12-09T20:03:45.918Z
Modified
2026-04-10T05:35:15.935009Z
Severity
  • 7.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Elysia affected by arbitrary code injection through cookie config
Details

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Versions 1.4.17 and below are subject to arbitrary code execution from cookie config. When dynamic cookies are enabled (e.g. there an existing cookie schema), the cookie config is injected into the compiled route without first being sanitised. Availability of this exploit is generally low, but when combined with GHSA-hxj9-33pp-j2cc, it allows for a full RCE chain. An attack requires write access to either the Elysia app's source code (in which case the vulnerability is meaningless) or write access to the cookie config (perhaps where it is assumed to be provisioned by the environment). This issue is fixed in version 1.4.18.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66457.json",
    "cwe_ids": [
        "CWE-94"
    ]
}
References

Affected packages

Git / github.com/elysiajs/elysia

Affected ranges

Type
GIT
Repo
https://github.com/elysiajs/elysia
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
07b449a3a3510fb6b707823eacef704a3898d3a1

Affected versions

0.*
0.0.0-experimental.28
0.0.0-experimental.29
0.0.0-experimental.37
0.0.0-experimental.39
0.0.0-experimental.51
0.1
0.2.0
0.3
0.4
0.7
0.8.0-exp.10
1.*
1.1.12
1.1.13
1.2.1
1.2.10
1.2.11
1.2.12
1.2.13
1.2.14
1.2.15
1.2.16
1.2.17
1.2.18
1.2.19
1.2.2
1.2.20
1.2.21
1.2.22
1.2.23
1.2.24
1.2.25
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9
1.3.0
1.3.1
1.3.10
1.3.11
1.3.12
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
1.3.9
1.4.1
1.4.10
1.4.11
1.4.12
1.4.13
1.4.14
1.4.15
1.4.16
1.4.17
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.8
1.4.9
v0.*
v0.4.12
v0.5.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66457.json"