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Vulnerabilities

Security fix · CVE-2026-115728

@hapi/content: Regular Expression Denial of Service (ReDoS) in HTTP header parsing

Published Apr 4, 2026 · catalog updated Oct 24, 2026 · @hapi/content: Regular Expression Denial

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-115728. EPSS is 0.47%. Act only if a listed version of @hapi/content: Regular Expression Denial is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (@hapi/content: Regular Expression Denial).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.47%
Remediation
Advisory link
Affected products
npm @hapi/content

All versions of through 6.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via crafted HTTP header values. Three regular expressions used to parse and 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm @hapi/content0 → 6.0.1

How to fix CVE-2026-115728

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-115728. EPSS is 0.47%. Act only if a listed version of @hapi/content: Regular Expression Denial is installed.

Which versions are affected?

Compare what you have installed with 0 → 6.0.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1333: Inefficient Regular Expression Complexity. EPSS 0.47%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 4, 2026 · GitHub Advisory Database

    Detected

    All versions of through 6.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via crafted HTTP header values. Three regular expressions used to parse and 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 sing

  2. Oct 24, 2026 · GitHub Advisory Database

    Fix available

    @hapi/content fixed in 6.0.1

  3. Oct 24, 2026 · GitHub Advisory Database

    Fix available

    @hapi/content fixed in 6.0.1

  4. Oct 24, 2026 · GitHub Advisory Database

    Updated

    All versions of through 6.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via crafted HTTP header values. Three regular expressions used to parse and 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 sing

Sources

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 28, 2026
  • CVE.orgOct 24, 2026
  • GitHub Advisory DatabaseOct 24, 2026
  • OpenSSF OSV / OSV ScannerOct 24, 2026