A vulnerability, which was classified as critical, has been found in Upsonic up to 0.55.6. This issue affects the function cloudpickle.loads of the file /tools/add_tool of the component Pickle Handler
A vulnerability, which was classified as critical, has been found in Upsonic up to 0.55.6. This issue affects the function cloudpickle.loads of the file /tools/add_tool of the component Pickle Handler. The manipulation leads to deserialization. The exploit has been disclosed to the public and may be used.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | upsonic | < 0.56.0 | 0.56.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-6279
- https://github.com/Upsonic/Upsonic/issues/353
- https://github.com/Upsonic/Upsonic/pull/360
- https://github.com/Upsonic/Upsonic/pull/360#issuecomment-2979387098
- https://github.com/Upsonic/Upsonic/commit/a54529acc6e4bfe28f4f5c80c058144348a306b7
- https://github.com/Upsonic/Upsonic
- https://github.com/pypa/advisory-database/tree/main/vulns/upsonic/PYSEC-2025-68.yaml
- https://vuldb.com/?ctiid.313283
- https://vuldb.com/?id.313283
- https://vuldb.com/?submit.593099
- https://github.com/advisories/GHSA-rpfv-46xj-5984
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-20, CWE-502- Platform
- Python (PyPI)
- Package
upsonic- Disclosed
- 19.06.2025
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-rpfv-46xj-5984 - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2025-68 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: upsonic
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 06.2025 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 1
Disclosures per year
- 2025: 2
- 2026: 1
-
A vulnerability, which was classified as critical, has been found in Upsonic up to 0.55.6. This issue affects the function cloudpickle.loads of the file /tools/add_tool of the component Pickle Handler this entry
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