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CWE-644: Improper Neutralization of HTTP Headers for Scripting Syntax

Weakness Summary

The product does not neutralize or incorrectly neutralizes web scripting syntax in HTTP headers that can be used by web browser components that can process raw headers, such as Flash.

  • Canonical source: MITRE CWE-644 (opens in a new tab)
  • Published Atomicorp CVE observations: 2
  • Distinct affected products in those observations: 2
  • Active Atomicorp rules associated with this weakness: 13

Atomicorp Research Context

Atomicorp has published CVE-specific research observations associated with this weakness category. Each linked CVE page states whether the tested request was detected or blocked and is the authoritative customer-facing finding.

The CVEs and rules shown here are selected published examples, not a complete list of Atomicorp protections. If a CWE, CVE, or rule is absent from this page, no conclusion should be drawn about whether Atomicorp protects against that weakness or attack method.

A CWE describes a class of software weakness. It does not identify one exploit request, and association with a CWE does not mean that every vulnerability or exploitation path in that category is detected or blocked.

Selected Published CVE Observations

CVEVulnerabilityProductAtomicorp findingObserved rules
CVE-2026-48126Algernon: Host header path traversal in –domain mode reads files and runs Lua from parent diralgernonAttack Blocked by Atomicorp340007 , 344360 , 347009 , 390709
CVE-2026-67179Genkit improper host header validationgenkitAttack Blocked by Atomicorp340014 , 340023 , 340029 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 , 393655

Associated Atomicorp WAF Rules

RuleStatusBehavior
340007Activedisruptive (deny)
340014Activedisruptive (deny)
340023Activedisruptive (deny)
340029Activedisruptive (deny)
344360Activedisruptive (deny)
344361Activedisruptive (deny)
344363Activedisruptive (deny)
344364Activedisruptive (deny)
344366Activedisruptive (deny)
344370Activedisruptive (deny)
347009Activedisruptive (deny)
390709Activedisruptive (deny)
393655Activedisruptive (deny)