Vulnerabilities in pkg:npm/express-zod-api
PACKAGEGHSA-mvrp-3cvx-c325 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-1333: Inefficient Regular Expression Complexity) affecting Express zod api libraries in the npm ecosystem. The issue involves zod denial of service vulnerability during email validation. Remediation is available by upgrading affected packages to version 10.0.0-beta1.
pkg:npm/express-zod-api
Vulnerability advisories affecting package pkg:npm/express-zod-api. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-mvrp-3cvx-c325 | - | HIGH | Zod denial of service vulnerability during email validation |
GHSA-mvrp-3cvx-c325 at a Glance
Security Impact
CVSS: 7.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
How to Fix GHSA-mvrp-3cvx-c325
To remediate this vulnerability, upgrade all affected Express zod api dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install express-zod-api@10.0.0-beta1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls express-zod-apiHow to Check if You Are Affected
To determine whether your Node.js application is affected by GHSA-mvrp-3cvx-c325, inspect your project dependencies using npm:
npm ls express-zod-apiAnalyze the terminal output to locate any version of Express zod api in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.0.0-beta1), your application is affected.
Note: The npm ls express-zod-api command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-1333: Inefficient Regular Expression Complexity, where the product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential. In Express zod api, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
GHSA-mvrp-3cvx-c325 Affected Express zod api Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
express-zod-api
|
npm |
< 10.0.0-beta1
|
10.0.0-beta1
|
References
Frequently Asked Questions
What is GHSA-mvrp-3cvx-c325?
Which Express zod api versions are affected?
What version fixes GHSA-mvrp-3cvx-c325?
Is express-zod-api affected?
What is the CVSS score of GHSA-mvrp-3cvx-c325?
What CWE is associated with GHSA-mvrp-3cvx-c325?
How can I check npm dependencies for GHSA-mvrp-3cvx-c325?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-mvrp-3cvx-c325",
"modified" : "2023-10-04T14:46:06Z",
"published" : "2023-10-04T14:46:06Z",
"aliases" : [ ],
"summary" : "Zod denial of service vulnerability during email validation",
"details" : "### Impact\n\nAPI servers running `express-zod-api` having:\n\n- version of `express-zod-api` below `10.0.0-beta1`,\n- and using the following (or similar) validation schema in its implementation: `z.string().email()`,\n\nare vulnerable to a DoS attack due to: \n\n- Inefficient Regular Expression Complexity in `zod` versions up to `3.22.2`,\n- depending on `zod`.\n\n### Patches\n\nThe patched version of `zod` fixing the vulnerability is `3.22.3`.\n\nHowever, 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.\n\n### Workarounds\n\nWhen it's not possible to upgrade your dependencies, consider the following replacement in your implementation:\n\n```diff\n- z.string().email()\n+ z.string().regex(\n+ /^(?!\\.)(?!.*\\.\\.)([A-Z0-9_+-\\.]*)[A-Z0-9_+-]@([A-Z0-9][A-Z0-9\\-]*\\.)+[A-Z]{2,}$/i\n+ )\n```\n\nThis regular expression is taken from the suggested patch of `zod`.\n\n### References\n\n- Original issue: https://github.com/colinhacks/zod/issues/2609\n- The patch: https://github.com/colinhacks/zod/pull/2824\n- Entry in database: https://nvd.nist.gov/vuln/detail/CVE-2023-4316\n- Enumeration: https://cwe.mitre.org/data/definitions/1333.html\n- Parent advisory: https://github.com/advisories/GHSA-m95q-7qp3-xv42\n- Changelog entry for `express-zod-api` version `10.0.0-beta1`: https://github.com/RobinTail/express-zod-api/blob/master/CHANGELOG.md#v1000-beta1",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "express-zod-api"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "10.0.0-beta1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/RobinTail/express-zod-api/security/advisories/GHSA-mvrp-3cvx-c325"
}, {
"type" : "WEB",
"url" : "https://github.com/colinhacks/zod/issues/2609"
}, {
"type" : "WEB",
"url" : "https://github.com/colinhacks/zod/pull/2824"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/RobinTail/express-zod-api"
}, {
"type" : "ADVISORY",
"url" : "https://github.com/advisories/GHSA-m95q-7qp3-xv42"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-1333" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2023-10-04T14:46:06Z",
"nvd_published_at" : null
}
}