How severe is CVE-2024-27454?

CVE-2024-27454 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-27454 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-27454?

CVE-2024-27454 affects Ijl Orjson. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-27454?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-27454 have an EU (EUVD) identifier?

Yes. CVE-2024-27454 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0130.

When was CVE-2024-27454 published?

CVE-2024-27454 was published on 2024-02-26 and last updated on 2026-06-17.

CVE-2024-27454

CVE-2024-27454 is a high-severity vulnerability in Ijl Orjson with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0130
Weakness: CWE-674
Affected product: Ijl Orjson
Published: 2024-02-26
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2024-27454?: orjson.loads in orjson before 3.9.15 does not limit recursion for deeply nested JSON documents.
How severe is CVE-2024-27454?: CVE-2024-27454 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-27454 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-27454?: CVE-2024-27454 affects Ijl Orjson. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-27454?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-27454 have an EU (EUVD) identifier?: Yes. CVE-2024-27454 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0130.
When was CVE-2024-27454 published?: CVE-2024-27454 was published on 2024-02-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ijl:orjson:*:*:*:*:*:python:*:*

More vulnerabilities in Ijl Orjson

CVE-2025-67221 — High (CVSS 7.5): The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.

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