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HIGH

CVE-2022-45442

CVSS v3

8.8

HIGH

EPSS Score

0.7 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • sinatraRubyGemsfrom 2.0.0 · fixed in 2.2.3
  • pcsAlmaLinux:9all versions · fixed in 0.11.3-4.el9_1.2and 1 other package
  • pcsAlmaLinux:8all versions · fixed in 0.10.14-5.el8_7.2.almaand 1 other package

Vendor advisories

  • CVE-2022-45442 Red Hat Product Security93 products fixed · 2 known affected

    sinatra: Reflected File Download attack

    3scale-amp-backend-container as a component of Red Hat 3scale API Management Platform 2 · 3scale-amp-zync-container as a component of Red Hat 3scale API Management Platform 2

  • RHSA-2023:0974 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: pcs security update

  • RHSA-2023:0857 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: pcs security update

  • RHSA-2023:0855 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: pcs security update

  • RHSA-2023:0527 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: pcs security update

  • RHSA-2023:0506 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: pcs security update

2 more advisories

Full record on 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.

Technical details

Published
2022-11-28

Frequently asked questions

What is CVE-2022-45442?

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.

Is CVE-2022-45442 actively exploited?

Active exploitation of CVE-2022-45442 has not been confirmed. Its EPSS score was 0.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-45442?

CVE-2022-45442 has a CVSS v3 base score of 8.8 (HIGH severity).

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