DEBIAN-CVE-2026-54163

Source
https://security-tracker.debian.org/tracker/CVE-2026-54163
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54163.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-54163
Upstream
Published
2026-07-17T21:17:08Z
Modified
2026-09-14T17:03:20Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

secure_headers manages application of security headers with many safe defaults. Prior to 7.3.0, secure_headers builds the Content-Security-Policy value by stitching directives with ; separators, and build_sandbox_list_directive, build_media_type_list_directive, and build_report_to_directive interpolate caller-supplied strings without scrubbing ;, \r, or \n. When untrusted input reaches SecureHeaders.override_content_security_policy_directives or append APIs for :sandbox, :plugin_types, or :report_to, an attacker can inject a CSP directive such as script-src 'unsafe-inline' * before the legitimate script-src, enabling XSS reachability through these sinks or CSP report exfiltration. This issue is fixed in version 7.3.0.

References

Affected packages

Debian:12 / ruby-secure-headers

Package

Name
ruby-secure-headers
Purl
pkg:deb/debian/ruby-secure-headers?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.3.2-1
6.3.2-2
7.*
7.1.0-1
7.2.0-1
7.3.0-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54163.json"

Debian:13 / ruby-secure-headers

Package

Name
ruby-secure-headers
Purl
pkg:deb/debian/ruby-secure-headers?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.3.2-2
7.*
7.1.0-1
7.2.0-1
7.3.0-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54163.json"

Debian:14 / ruby-secure-headers

Package

Name
ruby-secure-headers
Purl
pkg:deb/debian/ruby-secure-headers?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.3.0-1

Affected versions

6.*
6.3.2-2
7.*
7.1.0-1
7.2.0-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54163.json"