High severity · published Apr 6, 2026
CVE-2026-35213
Regular Expression Denial of Service (ReDoS) in @hapi/content HTTP header parsing
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
@hapi/content provided HTTP Content-* headers parsing. All versions of @hapi/content through 6.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via crafted HTTP header values. Three regular expressions used to parse Content-Type and Content-Disposition headers contain patterns susceptible to catastrophic backtracking. This vulnerability is fixed in 6.0.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
content · hapijs
< 6.0.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35213
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-35213
Issue Tracking
https://github.com/hapijs/content/pull/38
Vendor Advisory
https://github.com/hapijs/content/security/advisories/GHSA-jg4p-7fhp-p32p
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