DEBIAN-CVE-2026-34830
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-34830
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34830.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34830
- Upstream
- Published
- 2026-04-02T17:16:26Z
- Modified
- 2026-09-14T17:03:30Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfile#map_accel_path interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not escaped, an attacker who can supply X-Accel-Mapping to the backend can inject regex metacharacters and control the generated X-Accel-Redirect response header. In deployments using Rack::Sendfile with x-accel-redirect, this can allow an attacker to cause nginx to serve unintended files from configured internal locations. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
- References
Affected packages
Debian:12 / ruby-rack
Package
- Name
- ruby-rack
- Purl
- pkg:deb/debian/ruby-rack?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.2.22-0+deb12u2
Debian:13 / ruby-rack
Package
- Name
- ruby-rack
- Purl
- pkg:deb/debian/ruby-rack?arch=source&distro=trixie
Debian:14 / ruby-rack
Package
- Name
- ruby-rack
- Purl
- pkg:deb/debian/ruby-rack?arch=source&distro=forky