Quadratic-time parsing in @hapi/content allows denial of service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
@hapi/content versions before 6.0.3 are affected, and the npm package content is listed as affected from 3.0.6 through 4.0.6. Content.disposition() uses an unanchored regular expression in a global scan, so a Content-Disposition parameter with a long token and no equals sign makes parsing quadratic (CWE-1333). An unauthenticated remote attacker can block the Node.js event loop by sending such headers, including to hapi routes with payload.multipart enabled.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
@hapi/content provides HTTP Content-* header parsing. From 3.0.6 until 6.0.3, Content.disposition() uses an unanchored parameter-name expression in a global regular-expression scan, causing repeated failed matching over the remaining input when a Content-Disposition parameter contains a long token without an equals sign. The resulting quadratic processing can block the Node.js event loop before route handlers or validation when @hapi/pez parses multipart/form-data headers, including unauthenticated hapi routes with payload.multipart enabled, and also affects applications that pass untrusted headers directly to Content.disposition(). This issue is fixed in @hapi/content version 6.0.3.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| hapijs | content | before 6.0.3 | 6.0.3 | Patch available | CNA |
| — | @hapi/content (npm) | before 6.0.3 | 6.0.3 | Patch available | GHSA-8494-f6mr-cjpv |
| — | content (npm) | 3.0.6 – 4.0.6 | — | No fix listed | GHSA-8494-f6mr-cjpv |
- content Vendorhapijs Affected before 6.0.3 Fixed in 6.0.3 Patch available CNA
- @hapi/content (npm) Vendor— Affected before 6.0.3 Fixed in 6.0.3 Patch available GHSA-8494-f6mr-cjpv
- content (npm) Vendor— Affected 3.0.6 – 4.0.6 Fixed in — No fix listed GHSA-8494-f6mr-cjpv
Remediation
Upgrade @hapi/content to version 6.0.3, which fixes the issue. The sources list no fixed version for content.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA content (hapijs) Fixed in 6.0.3
- Fix · GHSA-8494-f6mr-cjpv @hapi/content (npm) Fixed in 6.0.3 Advisory →
Timeline
- 2026-10-29 Threatist record created from CVE-2026-119202
- 2026-10-30 Alias added: GHSA-8494-f6mr-cjpv
- 2026-10-30 Fix available: npm/@hapi/[email protected] · GHSA-8494-f6mr-cjpv
- 2026-10-30 CVSS score added · GHSA-8494-f6mr-cjpv
- 2026-10-30 Weakness changed · GHSA-8494-f6mr-cjpv
- 2026-10-30 5 new references · GHSA-8494-f6mr-cjpv
- 2026-10-31 Priority changed: MEDIUM → LOW
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Priority changed: LOW → HIGH
References
More hapijs vulnerabilities
- TI-2026-82716 Quadratic-time split in joi email rule allows denial of service CVSS 3.1HIGH 7.5
- TI-2026-61678 joi before 17.13.8 and 18.2.9 Prototype Pollution via messages CVSS 4.0MEDIUM 6.3
- TI-2018-02726 Prototype pollution in @hapi hoek node module CVSS 3.0HIGH 8.8
- TI-2026-79747 Regular expression denial of service in @hapi/content disposition parsing CVSS 4.0HIGH 8.7
- TI-2026-62455 Joi before 17.13.7 and 18.2.6 ReDoS via isoDate CVSS 4.0HIGH 8.7
- TI-2026-27366 Regular Expression Denial of Service (ReDoS) in @hapi/content HTTP header parsing CVSS 4.0HIGH 8.7
Sources
- CVE-2026-119202 · CVE Program
- CVE-2026-119202 · NVD
- FIRST EPSS
- GHSA-8494-f6mr-cjpv · GitHub Advisory Database · CC BY 4.0
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