CVE-2026-30837 identifies a Regular Expression Denial of Service (ReDoS) vulnerability in the Elysia Typescript framework, affecting versions prior to 1.4.26. This flaw occurs when the t.String({ format: 'url' }) function processes repeated partial URL formats, causing significant regex slowdown. Rated with a CVSSv3.1 score of 7.5 (HIGH), it allows an unauthenticated attacker to achieve a denial of service (A:H) via a low-complexity network attack. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.26CPE matchmatch criteria | cpe:2.3:a:elysiajs:elysia:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.