🛡️ CVE-2026-35213 — content

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-1333 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

@hapi/content: Regular Expression Denial of Service (ReDoS) in HTTP header 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 has been fixed in v6.0.1.

Impact

Denial of Service. An unauthenticated remote attacker can cause a Node.js process to become unresponsive by sending a single HTTP request with a maliciously crafted header value.

Patches

Fixed by tightening all three regular expressions to eliminate backtracking.

Workarounds

There are no known workarounds. Upgrade to the patched version.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2026-35213 is classified as CWE-1333: Inefficient Regular Expression Complexity. A regular expression backtracks catastrophically on crafted input, consuming CPU out of proportion to input size.

Affected software

CVE-2026-35213 is recorded against 2 packages.

  • @hapi/content
  • content (fixed in 6.0.1)

Timeline and source

Published on 4 April 2026 and last revised on 24 April 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)

CVE-2026-35213 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-1333
Public Exploit ✅ No
Source NVD
Published 2026-04-04
Updated 2026-08-12
Modified 2026-04-24

Affected Packages

Software From version Fixed in
@hapi/content — —
content — 6.0.1

Site Security Check

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