# CVE-2025-22153: PYSEC-2026-1874 - try/except* clauses could allow bypass RestrictedPython via type confusion bug in the CPython interpreter

Source: https://junglewise.ai/threats/cve-2025-22153-try-except-clauses-could-allow-bypass-restrictedpython-via-type  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2025-22153 · Severity: low · CVSS 3.1 · Published 2026-07-07

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

Technologies: [restrictedpython (PyPI)](https://junglewise.ai/threats/technologies/pypi-restrictedpython). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2025-22153 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-22153 being exploited in the wild.

**How severe is CVE-2025-22153?** Low severity, with a CVSS score of 3.1, published 7 July 2026.

**Which products and versions are affected?** restrictedpython (PyPI) ECOSYSTEM:introduced=6.0,fixed=8.0.

**Is there a fix for CVE-2025-22153?** Yes. restrictedpython (PyPI): upgrade to 8.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-22153?** Check whether you run restrictedpython (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- restrictedpython (PyPI): upgrade to 8.0 or later

  ```sh
  pip install "restrictedpython>=8.0"
  ```


## Affected products

- restrictedpython (PyPI) ECOSYSTEM:introduced=6.0,fixed=8.0

## Identifiers

- CVE-2025-22153
- GHSA-gmj9-h825-chq2
- PYSEC-2026-1874

## Related threats

- [RestrictedPython sandbox escape via string.Formatter field resolution](https://junglewise.ai/threats/cve-2026-76825-restrictedpython-sandbox-escape-via-string-formatter-field)
- [Zope RestrictedPython access policy bypass via positional-only arguments](https://junglewise.ai/threats/cve-2026-55830-zope-restrictedpython-access-policy-bypass-via-positional-only)
- [RestrictedPython information leakage via `AttributeError.obj` and the `string` module](https://junglewise.ai/threats/cve-2024-47532-restrictedpython-information-leakage-via-attributeerror-obj-and)
- [Sandbox escape via various forms of "format".](https://junglewise.ai/threats/cve-2023-41039-sandbox-escape-via-various-forms-of-format)
- [RestrictedPython vulnerable to arbitrary code execution via stack frame sandbox escape](https://junglewise.ai/threats/cve-2023-37271-restrictedpython-vulnerable-to-arbitrary-code-execution-via-stack)