What is CVE-2026-44587?

CVE-2026-44587 is a medium-severity vulnerability in Carrierwaveuploader Carrierwave, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-06-17.

How severe is CVE-2026-44587?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Carrierwaveuploader Carrierwave

CVE-2026-44587

CarrierWave is a framework to upload files from Ruby applications. In versions prior to 2.2.7 and 3.1.3, the content_type_denylist check fails to escape regex metacharacters in string entries, causing the denylist to silently not match the…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

Affected products

Carrierwaveuploader Carrierwave — versions < 2.2.7, >= 3.0.0.rc, < 3.1.3

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-44587?: CVE-2026-44587 is a medium-severity vulnerability in Carrierwaveuploader Carrierwave, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-06-17.
How severe is CVE-2026-44587?: Medium severity. CVSS v3 base score is 4.7 out of 10.