Description
The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | python-orjson | 3.10.15-160000.3.1 | SUSE-SU-2026:20920-1 |
| SLES 16.0 | python-orjson | 3.10.15-160000.3.1 | SUSE-SU-2026:20920-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-orjson | 3.11.5-1.1 | openSUSE-SU-2026:10103-1 |
| openSUSE Leap 16.0 | python-orjson | 3.10.15-160000.3.1 | openSUSE-SU-2026:20407-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | datadog-agent-7.72-core-integrations | No fix yet | — |
| Wolfi rolling | datadog-agent-7.73-core-integrations | 7.73.3-r23 | — |
| Wolfi rolling | kserve-storage-controller | 0.16.0-r11 | — |
| Wolfi rolling | py3.10-ambassador +3 | 3.10.0-r24 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
kpatsakis/CVE-2025-67221 ★ 1 · Dec 1, 2025
A vulnerability in orjson
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | orjson | < 3.11.6 | 3.11.6 | GHSA-hx9q-6w63-j58v |
| PyPI | orjson | < 3.11.5 | 3.11.5 | PYSEC-2026-107 |
Advisories 4
- WID-SEC-2026-3046 IBM Concert: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- SUSE-SU-2026:20920-1 Security update for python-orjson SUSE / openSUSE Security Updates · Apr 2, 2026
- openSUSE-SU-2026:20407-1 Security update for python-orjson SUSE / openSUSE Security Updates · Mar 29, 2026
- openSUSE-SU-2026:10103-1 python311-orjson-3.11.5-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026