High severity · published Jan 23, 2025
CVE-2025-22153
try/except* clauses could allow bypass RestrictedPython via type confusion bug in the CPython interpreter
7.9
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
RestrictedPython · zopefoundation
>= 6.0, < 8.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-22153
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-22153
github.com
https://github.com/zopefoundation/RestrictedPython/commit/48a92c5bb617a647cffd0dadd4d5cfe626bcdb2f
github.com
https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-gmj9-h825-chq2
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