PT-2024-21907 · Orjson · Orjson

David Buchanan · Published 2024-02-25 · Updated 2025-09-18 · CVE-2024-27454

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions orjson versions prior to 3.9.15

Description The issue is related to the orjson.loads function in orjson, which does not limit recursion for deeply nested JSON documents. This can lead to potential exploitation.

Recommendations For versions prior to 3.9.15, update to version 3.9.15 or later to resolve the issue. As a temporary workaround, consider restricting the use of deeply nested JSON documents until a patch is applied.

Exploit

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2024-27454

GHSA-PWR2-4V36-6QPR

OPENSUSE-SU-2024:13735-1

OPENSUSE-SU-2024:13780-1

PYSEC-2024-40

Affected Products

Orjson

References · 16

• 🔥 https://github.com/ijl/orjson/issues/458 · Exploit
• https://github.com/ijl/orjson/commit/b0e4d2c06ce06c6e63981bf0276e4b7c74e5845e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-27454 · Security Note
• https://osv.dev/vulnerability/PYSEC-2024-40 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-27454 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-27454 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-pwr2-4v36-6qpr · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-27454 · Vendor Advisory
• https://github.com/ijl/orjson · Note
• https://github.com/ijl/orjson/blob/master/CHANGELOG.md#3915 · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/orjson/PYSEC-2024-40.yaml · Note
• https://twitter.com/cracbot/status/1762369586257633466 · Twitter Post
• https://t.me/cveNotify/135818 · Telegram Post
• https://monicz.dev/CVE-2024-27454 · Note
• https://twitter.com/VulmonFeeds/status/1762170246469746851 · Twitter Post