CVE-2026-56669

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Source
https://cve.org/CVERecord?id=CVE-2026-56669
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56669.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56669
Aliases
Published
2026-07-08T20:25:18Z
Modified
2026-10-28T02:31:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict
Details

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to 1.4.29, Elysia uses getAll in form data normalization for multipart/form-data endpoints, causing the amount of work to grow quadratically with the number of unique key-value pairs and allowing CPU exhaustion. This issue is fixed in version 1.4.29.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-407",
        "CWE-436"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56669.json"
}
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
8358ff9efbcedf9534995f5977f26b9ceab59329
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.4.29"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "8358ff9efbcedf9534995f5977f26b9ceab59329"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "1.4.29",
            "range": [
                {
                    "fixed": "8358ff9efbcedf9534995f5977f26b9ceab59329"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.4.29"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

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
1.4.18
1.4.19
1.4.2
1.4.20
1.4.21
1.4.22
1.4.23
1.4.24
1.4.25
1.4.26
1.4.27
1.4.28
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-2026-56669.json"