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CVE

CVE-2026-110447

Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerabil...
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CVE

CVE-2026-110447

Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerabil...

Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
-
4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://apps.nextcloud.com, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-110447, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110447.json, https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516, https://nvd.nist.gov/vuln/detail/CVE-2026-110447, https://github.com/CollaboraOnline/richdocumentscode/issues/354, https://github.com/CollaboraOnline/richdocumentscode

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.12328%
EPSS Percentile
0.96163%
Introduced Version
0
Fix Available
e0221971cc3e0cf39db4672bef54ad60bab90486

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