MEDIUM
CVE-2024-21494
CWE-290Published: February 17, 2024· Updated: Jun 17, 2026
5.4
CVSS v3.1
Official Description
All versions of the package github.com/greenpau/caddy-security are vulnerable to Authentication Bypass by Spoofing via the X-Forwarded-For header due to improper input sanitization. An attacker can spoof an IP address used in the user identity module (/whoami API endpoint). This could lead to unauthorized access if the system trusts this spoofed IP address.
Technical Analysis
CVE-2024-21494 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected Vendors & Products
greenpau1 product(s)
caddy-security
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (6)
→
→
https://github.com/greenpau/caddy-security/issues/266Issue Tracking
→
https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859Third Party Advisory
→
→
https://github.com/greenpau/caddy-security/issues/266Issue Tracking
→
https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859Third Party Advisory
Quick Facts
CVE IDCVE-2024-21494
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-290
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 17, 2024
Related CVEs (CWE-290)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-21494 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.