CVE-2026-63220

Source
https://cve.org/CVERecord?id=CVE-2026-63220
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63220.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63220
Aliases
  • GHSA-7wmf-pw8j-mc78
Downstream
Published
2026-07-31T03:50:27.294Z
Modified
2026-08-02T03:32:09.877111903Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
CodeIgniter: Spoofable forwarded HTTPS headers in IncomingRequest::isSecure()
Details

CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::isSecure() trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request, allowing an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request as secure. This may have impacted applications that rely on isSecure(), force_https(), forceGlobalSecureRequests, or similar logic to enforce HTTPS-only access or make security-sensitive decisions. Exploitability depends on deployment configuration. Applications are most exposed if the backend is reachable directly over HTTP, or if a reverse proxy/load balancer forwards client-supplied forwarding headers without stripping or overwriting them. This issue has been fixed in version 4.7.4.

Database specific
{
    "cwe_ids": [
        "CWE-348"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63220.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/codeigniter4/codeigniter4

Affected ranges

Type
GIT
Repo
https://github.com/codeigniter4/codeigniter4
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed
Database specific
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.7.4"
        }
    ]
}

Affected versions

4.*
4.0.0
v4.*
v4.0.0-alpha.1
v4.0.0-alpha.3
v4.0.0-alpha.4
v4.0.0-alpha.5
v4.0.0-beta.1
v4.0.0-beta.3
v4.0.0-beta.4
v4.0.0-rc.1
v4.0.0-rc.2
v4.0.0-rc.2b
v4.0.0-rc.3
v4.0.0-rc.4
v4.0.0.0-alpha.5
v4.0.1
v4.0.3
v4.0.5
v4.1.0
v4.1.1
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.1.7
v4.1.8
v4.1.9
v4.2.0
v4.2.1
v4.2.10
v4.2.11
v4.2.12
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.2.6
v4.2.7
v4.2.9
v4.3.0
v4.3.1
v4.3.2
v4.3.3
v4.3.4
v4.3.5
v4.3.6
v4.3.7
v4.3.8
v4.4.0
v4.4.1
v4.4.2
v4.4.3
v4.4.4
v4.4.5
v4.4.6
v4.4.7
v4.4.8
v4.5.0
v4.5.1
v4.5.2
v4.5.3
v4.5.4
v4.5.5
v4.5.6
v4.5.7
v4.5.8
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.6.4
v4.6.5
v4.7.0
v4.7.1
v4.7.2
v4.7.3

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63220.json"