GHSA-mvrp-3cvx-c325 – express-zod-api

Package

Manager: npm
Name: express-zod-api
Vulnerable Version: >=0 <10.0.0-beta1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Zod denial of service vulnerability during email validation ### Impact API servers running `express-zod-api` having: - version of `express-zod-api` below `10.0.0-beta1`, - and using the following (or similar) validation schema in its implementation: `z.string().email()`, are vulnerable to a DoS attack due to: - Inefficient Regular Expression Complexity in `zod` versions up to `3.22.2`, - depending on `zod`. ### Patches The patched version of `zod` fixing the vulnerability is `3.22.3`. However, it's highly recommended to upgrade `express-zod-api` to at least version `10.0.0`, which does not depend on `zod` strictly and directly, but requires its installation as a peer dependency instead, enabling you to install the patched `zod` version yourself. ### Workarounds When it's not possible to upgrade your dependencies, consider the following replacement in your implementation: ```diff - z.string().email() + z.string().regex( + /^(?!\.)(?!.*\.\.)([A-Z0-9_+-\.]*)[A-Z0-9_+-]@([A-Z0-9][A-Z0-9\-]*\.)+[A-Z]{2,}$/i + ) ``` This regular expression is taken from the suggested patch of `zod`. ### References - Original issue: https://github.com/colinhacks/zod/issues/2609 - The patch: https://github.com/colinhacks/zod/pull/2824 - Entry in database: https://nvd.nist.gov/vuln/detail/CVE-2023-4316 - Enumeration: https://cwe.mitre.org/data/definitions/1333.html - Parent advisory: https://github.com/advisories/GHSA-m95q-7qp3-xv42 - Changelog entry for `express-zod-api` version `10.0.0-beta1`: https://github.com/RobinTail/express-zod-api/blob/master/CHANGELOG.md#v1000-beta1

Metadata

Created: 2023-10-04T14:46:06Z
Modified: 2023-10-04T14:46:06Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-mvrp-3cvx-c325/GHSA-mvrp-3cvx-c325.json
CWE IDs: ["CWE-1333"]
Alternative ID: N/A
Finding: F211
Auto approve: 1