PyMongo Out-of-bounds Read in the bson module
Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could force the parser to deserialize unmanaged memory. The parser tries to interpret bytes next to buffer and throws an exception with string. If the following bytes are not printable UTF-8 the parser throws an exception with a single byte.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pymongo | < 4.6.3 | 4.6.3 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-5629
- https://github.com/mongodb/mongo-python-driver/commit/56b6b6dbc267d365d97c037082369dabf37405d2
- https://gist.github.com/keltecc/62a7c2bf74a997d0a7b48a0ff3853a03
- https://github.com/mongodb/mongo-python-driver
- https://jira.mongodb.org/browse/PYTHON-4305
- https://lists.debian.org/debian-lts-announce/2024/06/msg00007.html
- https://security.snyk.io/vuln/SNYK-PYTHON-PYMONGO-6370597
- https://pypi.org/project/pymongo
- https://github.com/advisories/GHSA-m87m-mmvp-v9qm
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:L- Weakness (CWE)
CWE-125- Platform
- Python (PyPI)
- Package
pymongo- Disclosed
- 05.06.2024
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1826 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-m87m-mmvp-v9qm - CC BY 4.0
Vulnerability history: pymongo
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 08.2013 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 4
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 4
earlier: 1
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PyMongo Out-of-bounds Read in the bson module this entry
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