Vulnerability details
CVE-2026-30837
elysiajs elysia
Elysia has a string URL format redos
CVSS 3.1
7.5High
Official description
Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Prior to 1.4.26 , t.String({ format: 'url' }) is vulnerable to ReDoS. Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly. This vulnerability is fixed in 1.4.26.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| elysiajs | elysia | < 1.4.26 | CVEProject cvelistV5 (CNA) |
References and advisories
2- https://github.com/elysiajs/elysia/security/advisories/GHSA-f45g-68q3-5w8x x_refsource_CONFIRM
- https://github.com/EdamAme-x/elysia-poc-redos x_refsource_MISC
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Details
- Published
- 2026-03-10
- Last updated
- 2026-03-11
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.54%
Probability of exploitation in 30 days
45.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-1333Inefficient Regular Expression Complexity