How severe is CVE-2025-5472?

CVE-2025-5472 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-5472 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-5472?

CVE-2025-5472 affects Llamaindex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-5472?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-5472 have an EU (EUVD) identifier?

Yes. CVE-2025-5472 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20209.

When was CVE-2025-5472 published?

CVE-2025-5472 was published on 2025-07-07 and last updated on 2026-06-17.

CVE-2025-5472

CVE-2025-5472 is a medium-severity vulnerability in Llamaindex with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20209
Weakness: CWE-674
Affected product: Llamaindex
Published: 2025-07-07
Last modified: 2026-06-17

Description

The JSONReader in run-llama/llama_index versions 0.12.28 is vulnerable to a stack overflow due to uncontrolled recursive JSON parsing. This vulnerability allows attackers to trigger a Denial of Service (DoS) by submitting deeply nested JSON structures, leading to a RecursionError and crashing applications. The root cause is the unsafe recursive traversal design and lack of depth validation, which makes the JSONReader susceptible to stack overflow when processing deeply nested JSON. This impacts the availability of services, making them unreliable and disrupting workflows. The issue is resolved in version 0.12.38.

Frequently asked questions

What is CVE-2025-5472?: The JSONReader in run-llama/llama_index versions 0.12.28 is vulnerable to a stack overflow due to uncontrolled recursive JSON parsing. This vulnerability allows attackers to trigger a Denial of Service (DoS) by submitting deeply nested JSON structures, leading to a RecursionError and crashing applications. The root cause is the unsafe recursive traversal design and lack of depth validation, which makes the JSONReader susceptible to stack overflow when processing deeply nested JSON. This impacts the availability of services, making them unreliable and disrupting workflows. The issue is resolved in version 0.12.38.
How severe is CVE-2025-5472?: CVE-2025-5472 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-5472 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-5472?: CVE-2025-5472 affects Llamaindex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-5472?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-5472 have an EU (EUVD) identifier?: Yes. CVE-2025-5472 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20209.
When was CVE-2025-5472 published?: CVE-2025-5472 was published on 2025-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

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