CVE-2024-27454 orjson does not limit recursion for deeply nested JSON documents
Attackers can cause denial of service in applications using orjson by submitting deeply nested JSON documents that trigger excessive recursion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-27454?
CVE-2024-27454 is a high-severity denial of service vulnerability in n/a, published on 26 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
orjson.loads in orjson before 3.9.15 does not limit recursion for deeply nested JSON documents.
Weakness: CWE-674
Which versions are affected by CVE-2024-27454?
3 open source packages ship an affected version, including orjson. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
orjson PyPI | All versions | 3.9.15 |
orjson PyPI | All versions | 3.9.15 |
orjson PyPI | All versions | 3.9.15 |
Linux distribution packages (2)
python-orjson openSUSE:Tumbleweed | All versions | 3.11.9-1.4 |
python-python-rapidjson openSUSE:Tumbleweed | All versions | 1.23-1.4 |
Products include Ijl Orjson.
How do I fix CVE-2024-27454?
Upgrade orjson to 3.9.15 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-27454 being exploited?
There is no known exploitation of CVE-2024-27454 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as CLSA-2026-1787140595, DEBIAN-CVE-2024-27454, ECHO-858e-faea-85ef, GHSA-pwr2-4v36-6qpr, PYSEC-2024-40, ROOT-APP-PYPI-CVE-2024-27454 and 4 more.