VULNERABILITY INTELLIGENCE
CVE-2020-37056
CVSS score9.8 CRITICAL
EPSS probability0.60%
CISA KEVNot currently listed
Published2026-01-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Crystal Shard http-protection 0.2.0 contains an IP spoofing vulnerability that allows attackers to bypass protection middleware by manipulating request headers. Attackers can hardcode consistent IP values across X-Forwarded-For, X-Client-IP, and X-Real-IP headers to circumvent security checks and gain unauthorized access.
Weakness classification
- disclosure@vulncheck.com: CWE-290