CVE-2026-9495
Last modified
CVE-2026-9495 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Versions of the package @koa/router from 14.0.0 and before 15.0.0 are vulnerable to Access Control Bypass due to the middleware being silently dropped from the execution chain when the router prefix contains path parameters. Depending on what the skipped middleware was supposed to protect, an attacker could bypass authentication and authorization, evade rate limiting or bypass input sanitization.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
Description
Versions of the package @koa/router from 14.0.0 and before 15.0.0 are vulnerable to Access Control Bypass due to the middleware being silently dropped from the execution chain when the router prefix contains path parameters. Depending on what the skipped middleware was supposed to protect, an attacker could bypass authentication and authorization, evade rate limiting or bypass input sanitization.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| — | @koa/router | >= 14.0.0, < 15.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-9495?
How severe is CVE-2026-9495?
How do I fix CVE-2026-9495?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-9487XML::Sig versions before 0.71 for Perl allow signature wrapp…9.1
- CVE-2026-9489NitroSense 3.x before 3.01.3052 contains Local Privilege Esc…8.5
- CVE-2026-9490A security vulnerability has been identified in Acer Care Ce…5.5
- CVE-2026-9492The MBStorage DRAM lighting control module within Gigabyte C…8.5
- CVE-2026-9493Service Center developed by BankPro E-Service Technology has…7.1
- CVE-2026-9494An information disclosure vulnerability exists in Canonical …5.5
- CVE-2026-9496Versions of the package pacote from 11.2.7 and before 21.5.1…7.7
- CVE-2026-9497A flaw has been found in changmingxie tcc-transaction up to …6.3
- CVE-2026-9498A vulnerability has been found in Dromara lamp-cloud up to 5…6.3
- CVE-2026-9499An out-of-bounds read (buffer over-read) vulnerability exist…6.3
- CVE-2026-9500A vulnerability was found in GNU LibreDWG up to 0.14. The af…5.3
- CVE-2026-9501A vulnerability was determined in GNU LibreDWG up to 0.14. T…3.3
Are you affected by CVE-2026-9495?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST