Security Vulnerabilities
Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching character, which triggers excessive backtracking and may lead to a denial-of-service condition.
CVSS Score
5.3
EPSS Score
0.0
Published
2026-02-12
### Summary
The `arrayLimit` option in qs does not enforce limits for comma-separated values when `comma: true` is enabled, allowing attackers to cause denial-of-service via memory exhaustion. This is a bypass of the array limit enforcement, similar to the bracket notation bypass addressed in GHSA-6rw7-vpxm-498p (CVE-2025-15284).
### Details
When the `comma` option is set to `true` (not the default, but configurable in applications), qs allows parsing comma-separated strings as arrays (e.g., `?param=a,b,c` becomes `['a', 'b', 'c']`). However, the limit check for `arrayLimit` (default: 20) and the optional throwOnLimitExceeded occur after the comma-handling logic in `parseArrayValue`, enabling a bypass. This permits creation of arbitrarily large arrays from a single parameter, leading to excessive memory allocation.
**Vulnerable code** (lib/parse.js: lines ~40-50):
```js
if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {
return val.split(',');
}
if (options.throwOnLimitExceeded && currentArrayLength >= options.arrayLimit) {
throw new RangeError('Array limit exceeded. Only ' + options.arrayLimit + ' element' + (options.arrayLimit === 1 ? '' : 's') + ' allowed in an array.');
}
return val;
```
The `split(',')` returns the array immediately, skipping the subsequent limit check. Downstream merging via `utils.combine` does not prevent allocation, even if it marks overflows for sparse arrays.This discrepancy allows attackers to send a single parameter with millions of commas (e.g., `?param=,,,,,,,,...`), allocating massive arrays in memory without triggering limits. It bypasses the intent of `arrayLimit`, which is enforced correctly for indexed (`a[0]=`) and bracket (`a[]=`) notations (the latter fixed in v6.14.1 per GHSA-6rw7-vpxm-498p).
### PoC
**Test 1 - Basic bypass:**
```
npm install qs
```
```js
const qs = require('qs');
const payload = 'a=' + ','.repeat(25); // 26 elements after split (bypasses arrayLimit: 5)
const options = { comma: true, arrayLimit: 5, throwOnLimitExceeded: true };
try {
const result = qs.parse(payload, options);
console.log(result.a.length); // Outputs: 26 (bypass successful)
} catch (e) {
console.log('Limit enforced:', e.message); // Not thrown
}
```
**Configuration:**
- `comma: true`
- `arrayLimit: 5`
- `throwOnLimitExceeded: true`
Expected: Throws "Array limit exceeded" error.
Actual: Parses successfully, creating an array of length 26.
### Impact
Denial of Service (DoS) via memory exhaustion.
CVSS Score
3.7
EPSS Score
0.0
Published
2026-02-12
JUNG Smart Visu Server 1.1.1050 contains a request header manipulation vulnerability that allows unauthenticated attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host header. Attackers can manipulate proxied requests to generate tainted responses, enabling cache poisoning, potential phishing, and redirecting users to malicious domains.
CVSS Score
8.8
EPSS Score
0.0
Published
2026-02-12
JUNG Smart Visu Server 1.1.1050 contains a denial of service vulnerability that allows unauthenticated attackers to remotely shutdown or reboot the server. Attackers can send a single POST request to trigger the server reboot without requiring any authentication.
CVSS Score
7.5
EPSS Score
0.002
Published
2026-02-12
Dell Update Package (DUP) Framework, versions 23.12.00 through 24.12.00, contains an Improper Handling of Insufficient Permissions or Privileges vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.
CVSS Score
8.2
EPSS Score
0.0
Published
2026-02-12
A race condition was addressed with improved handling of symbolic links. This issue is fixed in macOS Tahoe 26.3, macOS Sonoma 14.8.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. A shortcut may be able to bypass sandbox restrictions.
CVSS Score
9.0
EPSS Score
0.001
Published
2026-02-11
An authorization issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, iOS 18.7.5 and iPadOS 18.7.5. An app may be able to access sensitive user data.
CVSS Score
5.5
EPSS Score
0.0
Published
2026-02-11
The issue was addressed with additional restrictions on the observability of app states. This issue is fixed in macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3. A sandboxed app may be able to access sensitive user data.
CVSS Score
6.5
EPSS Score
0.0
Published
2026-02-11
A privacy issue was addressed with improved private data redaction for log entries. This issue is fixed in macOS Tahoe 26.3. An app may be able to access information about a user's contacts.
CVSS Score
3.3
EPSS Score
0.0
Published
2026-02-11
A logic issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, iOS 18.7.5 and iPadOS 18.7.5. An attacker may be able to discover a user’s deleted notes.
CVSS Score
5.3
EPSS Score
0.0
Published
2026-02-11