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Vulnerability record · CVE-2022-45442 · published 28 November 2022

CVE-2022-45442: Sinatrarb sinatra download of code without integrity check vulnerability

Sinatrarb · Sinatra

Sinatra is a domain-specific language for creating web applications in Ruby. An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input. Version 2.2.3 and 3.0.4 contain patches for this issue.

8.8 CVSS 3.1 High EPSS 0.69% · top 48.9% CWE-494 · Download of code without integrity check
8.8CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
11References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Sinatra is a domain-specific language for creating web applications in Ruby. An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input. Version 2.2.3 and 3.0.4 contain patches for this issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/advisories/GHSA-8x94-hmjh-97hq Not Applicable
https://github.com/sinatra/sinatra/commit/ea8fc9495a350f7551b39e3025bfcd06f49f363b PatchThird Party Advisory
https://github.com/sinatra/sinatra/security/advisories/GHSA-2x8x-jmrp-phxw Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00005.html Mailing ListThird Party Advisory
https://www.blackhat.com/docs/eu-14/materials/eu-14-Hafif-Reflected-File-Download-A-New-Web-Attack-Vector.pdf ExploitThird Party Advisory
https://github.com/advisories/GHSA-8x94-hmjh-97hq Not Applicable
https://github.com/sinatra/sinatra/commit/ea8fc9495a350f7551b39e3025bfcd06f49f363b PatchThird Party Advisory
https://github.com/sinatra/sinatra/security/advisories/GHSA-2x8x-jmrp-phxw Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00005.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00020.html
https://www.blackhat.com/docs/eu-14/materials/eu-14-Hafif-Reflected-File-Download-A-New-Web-Attack-Vector.pdf ExploitThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-45442), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.