Is CVE-2026-117553 in the CISA Known Exploited Vulnerabilities catalog?

CVE-2026-117553 is not currently listed in the CISA KEV catalog.

Vulnerability intelligence

CVE-2026-117553: Umbraco CMS vulnerability

CVE-2026-117553 starts with a poisoned Host header and needs a signed-in user to open a link. Fixes are in 17.7.2 and 18.2.2.

2026

What WebPulse reported · 1 analysis

CVE-2026-117553 starts with a poisoned Host header and needs a signed-in user to open a link. Fixes are in 17.7.2 and 18.2.2.

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