web2py exposure of sensitive information
web2py before 2.14.2 allows remote attackers to obtain the session_cookie_key value via a direct request to examples/simple_examples/status. NOTE: this issue can be leveraged by remote attackers to execute arbitrary code using CVE-2016-3957.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | web2py | < 2.14.2 | 2.14.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-3954
- https://github.com/web2py/web2py/commit/0820926b500a321060ef6a76ce89fd35a252f8b0
- https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957
- https://github.com/web2py/web2py
- https://usn.ubuntu.com/4030-1
- https://pypi.org/project/web2py
- https://github.com/advisories/GHSA-jr83-vr4j-mp6p
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-200- Platform
- Python (PyPI)
- Package
web2py- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1062 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-jr83-vr4j-mp6p - CC BY 4.0
Vulnerability history: web2py
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
- 8
- First → latest
- 05.2022 02.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- Medium 6
Disclosures per year
- 2022: 6
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 1
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web2py exposure of sensitive information this entry
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