Vulnerability in Zopefoundation Restrictedpython
CVE-2026-55830
RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program input into a trusted environment. Prior to 8.3, check_function_argument_names() rejected protected guard hook names for regul…
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L.
Affected products
- Zopefoundation Restrictedpython — versions < 8.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55830?
- CVE-2026-55830 is a high-severity vulnerability in Zopefoundation Restrictedpython, classified under Incomplete List of Disallowed Inputs. CVSS score: 8.3/10. Published 2026-07-08.
- How severe is CVE-2026-55830?
- High severity. CVSS v3 base score is 8.3 out of 10.