The specific flaw exists within the add_tool endpoint, which listens on TCP port 7541 by default. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-26845.
Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
| Link | Providers |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-26-042/ |
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Fri, 23 Jan 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Fri, 23 Jan 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Upsonic
Upsonic upsonic |
|
| Vendors & Products |
Upsonic
Upsonic upsonic |
Fri, 23 Jan 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the add_tool endpoint, which listens on TCP port 7541 by default. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-26845. | |
| Title | Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability | |
| Weaknesses | CWE-502 | |
| References |
| |
| Metrics |
cvssV3_0
|
Projects
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Status: PUBLISHED
Assigner: zdi
Published:
Updated: 2026-01-23T16:26:49.540Z
Reserved: 2026-01-08T22:50:37.089Z
Link: CVE-2026-0773
Updated: 2026-01-23T16:26:45.696Z
Status : Received
Published: 2026-01-23T04:16:04.493
Modified: 2026-01-23T04:16:04.493
Link: CVE-2026-0773
No data.
OpenCVE Enrichment
Updated: 2026-01-23T10:26:57Z