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2.1

O2OA may be tricked into contacting external servers

CVE-2026-105438 · published 13 days ago
Summary

Versions of O2OA up to 10.0.1-ce have a flaw in the file upload feature that lets an attacker supply a malicious URL. When exploited, the server can be forced to make outbound requests to any address, potentially exposing internal resources. Apply the vendor's patch or upgrade to a fixed version as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
– o2oa 10.0.1-ce
Original advisory text
O2OA General url ActionUploadExcelWithUrl server-side request forgery
A flaw has been found in O2OA up to 10.0.1-ce. This affects the function ActionUploadExcelWithUrl of the file /x_general_assemble_control/jaxrs/excel/upload/with/url of the component General Module. Executing a manipulation of the argument fileUrl can lead to server-side request forgery. The attack can be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-918Server-Side Request Forgery (SSRF)
Timeline
Published5 Oct 2026
Updated15 Oct 2026
First seen5 Oct 2026
Sources
CVE-2026-105438 · NVD
CVE-2026-105438 · MITRE
CVE-2026-105438 · OSV
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