Prototype Pollution in Ntharim Dot-Access
CVE-2026-107701
dot-access through 1.0.0 contains a prototype pollution vulnerability that allows attackers to modify Object.prototype by supplying a crafted dotted path to set(). Attackers controlling the path, such as through user-supplied field names, can use __proto__ segments to inject properties into all objects, altering authorization flags and option defaults or crashing the process.
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- gist.github.com/R3tro16/e094e4318a040f189fd5d2d33e8c3ec2 (third-party-advisory)
- github.com/ntharim/dot-access/issues/5 (issue-tracking)
- github.com/ntharim/dot-access/blob/v1.0.0/index.js (technical-description)
- github.com/ntharim/dot-access (product)
- www.vulncheck.com/advisories/dot-access-through-1.0.0-prototype-pollution-via-s… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-107701?
- CVE-2026-107701 is a high-severity vulnerability in Ntharim Dot-Access, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 8.2/10. Published 2026-10-08.
- How severe is CVE-2026-107701?
- High severity. CVSS v3 base score is 8.2 out of 10.