CVE-2024-26141 — Possible DoS Vulnerability with Range Header in Rack

Affected: rack, rack_project rack

Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue. Vulnerable applications will use the `Rack::File` middleware or the `Rack::Utils.byte_ranges` methods (this includes Rails applications). The vulnerability is fixed in 3.0.9.1 and 2.2.8.1.

GHSA-xj5v-6v4g-jfw6 — Rack has possible DoS Vulnerability with Range Header

Affected: RubyGems: rack

# Possible DoS Vulnerability with Range Header in Rack

There is a possible DoS vulnerability relating to the Range request header in Rack. This vulnerability has been assigned the CVE identifier CVE-2024-26141.

Versions Affected: >= 1.3.0. Not affected: < 1.3.0 Fixed Versions: 3.0.9.1, 2.2.8.1

Impact ------ Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue.

Vulnerable applications will use the `Rack::File` middleware or the `Rack::Utils.byte_ranges` methods (this includes Rails applications).

Releases -------- The fixed releases are available at the normal locations.

Workarounds ----------- There are no feasible workarounds for this issue.

Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.

* 3-0-range.patch - Patch for 3.0 series * 2-2-range.patch - Patch for 2.2 series

Credits -------

Thank you [ooooooo_q](https://hackerone.com/ooooooo_q) for the report and patch

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CVE-2024-26141 — Possible DoS Vulnerability with Range Header in Rack

GHSA-xj5v-6v4g-jfw6 — Rack has possible DoS Vulnerability with Range Header