CVE-2026-77166: low-severity vulnerability in Nextcloud Collectives
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.4epss 0.3%
The emoji field in the page emoji update endpoint does not properly validate user input. By injecting long text and line breaks, the sidebar layout becomes broken and can hide other items.
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Affected products
Nextcloud · CollectivesRelated CVEs — Nextcloud Collectives
In the same product, most dangerous first.
References
https://hackerone.com/reports/3599470