UBUNTU-CVE-2026-126204

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Source
https://ubuntu.com/security/CVE-2026-126204
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126204.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-126204
Upstream
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:25Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

express-rate-limit is a basic rate-limiting middleware for Express. From 8.6.0 until 8.7.2, the built-in MemoryStore returns a Client whose mutable resetTime object is retained by middleware using skipFailedRequests or skipSuccessfulRequests. When a later request resets the client window, MemoryStore.resetClient mutates that same Date, so an earlier request that finishes or disconnects after the reset can pass the stale-window guard and decrement the current window's count. A client able to keep requests in flight across the boundary can obtain a bounded extra burst of up to one additional configured limit in the new window; the behavior does not increase the sustained rate. Stores that return a fresh Date are not affected. This issue is fixed in version 8.7.2.

References

Affected packages

Ubuntu:26.10 / node-express-rate-limit

Package

Name
node-express-rate-limit
Purl
pkg:deb/ubuntu/node-express-rate-limit?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.5.2-2
8.6.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-express-rate-limit",
            "binary_version": "8.6.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126204.json"