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Low 2.4Published Sep 21, 2026
CVE-2026-77166The emoji field in the page emoji update endpoint does not properly validate user input.
Updated under an hour ago ()
Does this affect you?
It affects Nextcloud Collectives. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 2.4 LOW (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-840
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- hackerone
- NVD analysis
- Deferred
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Nextcloud Collectives nextcloud:collectives (from the name) | from 3.2.1 through 3.5.0 | CNA record |
References
- https://hackerone.com/reports/3599470
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.