# CVE-2013-2132: Use of NullPointerException Catch to Detect NULL Pointer Dereference in Pymongo

Source: https://junglewise.ai/threats/cve-2013-2132-use-of-nullpointerexception-catch-to-detect-null-pointer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2013-08-15  
License: CC BY 4.0 with a link back

CVE-2013-2132 · Severity: medium · CVSS 4 · Published 2013-08-15

bson/_cbsonmodule.c in the mongo-python-driver (aka. pymongo) before 2.5.2, as used in MongoDB, allows context-dependent attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to decoding of an "invalid DBRef."

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

## Quick answers

**Is CVE-2013-2132 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2013-2132 being exploited in the wild.

**How severe is CVE-2013-2132?** Medium severity, with a CVSS score of 4, published 15 August 2013.

**Which products and versions are affected?** pymongo (PyPI) ECOSYSTEM:introduced=0,fixed=2.5.2, GIT:introduced=0,fixed=a060c15ef87e0f0e72974c7c0e57fe811bbd06a2|ECOSYSTEM:introduced=0,fixed=2.5.2.

**Is there a fix for CVE-2013-2132?** Yes. pymongo (PyPI): upgrade to 2.5.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2013-2132?** Check whether you run pymongo (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

- pymongo (PyPI): upgrade to 2.5.2 or later

  ```sh
  pip install "pymongo>=2.5.2"
  ```


## Affected products

- pymongo (PyPI) ECOSYSTEM:introduced=0,fixed=2.5.2, GIT:introduced=0,fixed=a060c15ef87e0f0e72974c7c0e57fe811bbd06a2|ECOSYSTEM:introduced=0,fixed=2.5.2

## Identifiers

- CVE-2013-2132
- GHSA-x33v-f3gp-gw2c
- PYSEC-2013-30

## Related threats

- [MongoDB Python Driver out-of-bounds read in BSON decoding](https://junglewise.ai/threats/duplicate-advisory-python-6110-out-of-bounds-read-in-bson-decoding-via-96ff82c3)
- [MongoDB Python Driver buffer over-read in BSON regex parsing](https://junglewise.ai/threats/cve-2026-106435-the-mongodb-python-driver-s-binary-accelerator-can-read-outside)
- [MongoDB Python Driver integer overflow in BSON encoding](https://junglewise.ai/threats/cve-2026-96749-an-integer-overflow-in-the-bson-document-encoding-component-of)
- [PyMongo connection string parsing host injection](https://junglewise.ai/threats/cve-2026-96748-pymongo-s-connection-string-parsing-decodes-percent-encoded)
- [MongoDB Python Driver Unix socket misinterpretation in key management](https://junglewise.ai/threats/cve-2026-96747-the-client-side-field-level-encryption-support-in-the-mongodb)