Vulnerability details

CVE-2025-22153

zopefoundation RestrictedPython

try/except* clauses could allow bypass RestrictedPython via type confusion bug in the CPython interpreter

CVSS 3.1

7.9High

Official description

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. Via a type confusion bug in versions of the CPython interpreter starting in 3.11 and prior to 3.13.2 when using `try/except*`, RestrictedPython starting in version 6.0 and prior to version 8.0 could be bypassed. The issue is patched in version 8.0 of RestrictedPython by removing support for `try/except*` clauses. No known workarounds are available.

CVSS scores

Score	Version	Source	Vector
7.9High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L`

Affected products

Vendor	Product	Versions	Source
zopefoundation	RestrictedPython	>= 6.0, < 8.0	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-gmj9-h825-chq2 x_refsource_CONFIRM
https://github.com/zopefoundation/RestrictedPython/commit/48a92c5bb617a647cffd0dadd4d5cfe626bcdb2f x_refsource_MISC

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Details

Published: 2025-01-23
Last updated: 2025-02-13
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.4%

Probability of exploitation in 30 days

34.3%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')