What is the CVSS score of CVE-2025-3225?

CVE-2025-3225 has a CVSS 3.0 base score of 7.5 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Llamaindex are affected by CVE-2025-3225?

Organizations using version face notable risk from CVE-2025-3225 rated CVSS 7.5. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2025-3225?

Yes, a public proof-of-concept exploit is available for CVE-2025-3225. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-3225?

Within 7 days: Identify all affected systems running version and apply vendor patches promptly. Vendor patch is available.

Llamaindex CVE-2025-3225

EUVD-2025-20207 HIGH

Improper Restriction of Recursive Entity References in DTDs (CWE-776)

2025-07-07 security@huntr.dev

GHSA-w42r-mrx7-c633

Denial Of Service Llamaindex Red Hat

7.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Red Hat

5.3 MEDIUM

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 16, 2026 - 03:37 euvd

EUVD-2025-20207

Analysis Generated

Mar 16, 2026 - 03:37 vuln.today

Patch released

Mar 16, 2026 - 03:37 nvd

Patch available

PoC Detected

Jul 30, 2025 - 21:24 vuln.today

Public exploit code

CVE Published

Jul 07, 2025 - 10:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

2 pypi packages depend on llama-index (2 direct, 0 indirect)

Ecosystem-wide dependent count for version 0.12.21.

DescriptionCVE.org

An XML Entity Expansion vulnerability, also known as a 'billion laughs' attack, exists in the sitemap parser of the run-llama/llama_index repository, specifically affecting version v0.12.21. This vulnerability allows an attacker to supply a malicious Sitemap XML, leading to a Denial of Service (DoS) by exhausting system memory and potentially causing a system crash. The issue is resolved in version v0.12.29.

Analysis

Technical ContextAI

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Improper Restriction of Recursive Entity References in DTDs (CWE-776).

RemediationAI

A vendor patch is available — apply it immediately. Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.