CVE-2024-27454

Exp

orjson.loads in orjson before 3.9.15 does not limit recursion for deeply nested JSON documents.

Published: 2024-02-26 Last update: 2025-09-18 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-27454 is rated High Exploit Risk (68.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.19%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.08% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-27454

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-27454

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.10% 1.19% +1.08%
2 2025-11-21 0.52% 0.10% -0.41%
3 2025-11-18 — 0.52% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-27454

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2024-27454

GitHub Security Advisory for CVE-2024-27454

GHSA-pwr2-4v36-6qpr · Severity: high · Ecosystem: pip — orjson does not limit recursion for deeply nested JSON documents

OS Trackers for CVE-2024-27454

vendor priority summary link
debian not yet assigned CVE-2024-27454 not yet assigned priority: Debian including 1 source packages (python-orjson), 3 status rows across 3 suites (forky, sid, trixie): resolved 3. https://security-tracker.debian.org/tracker/CVE-2024-27454
suse high CVE-2024-27454 severity important: SUSE including 9 source package names (python310-orjson-3.9.15-1.1, python310-python-rapidjson-1.16-1.1, …), 9 product×package rows across 2 product lines (SUSE Linux Enterprise Server 16.0, openSUSE Tumbleweed): Fixed 9. https://www.suse.com/security/cve/CVE-2024-27454/
ubuntu medium CVE-2024-27454 medium priority: Ubuntu including 1 source packages (python-orjson), 4 status rows across 4 suites (focal, jammy, noble, upstream): DNE 3, released 1. https://ubuntu.com/security/CVE-2024-27454

Affected software / configurations for CVE-2024-27454

Vendor Product Version Raw CPE
ijl orjson < 3.9.15 cpe:2.3:a:ijl:orjson:*:*:*:*:*:python:*:*

References for CVE-2024-27454

cvelogic Threat Intelligence