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CVE-2025-3225

XML Entity Expansion vulnerability in run-llama/llama_index

Published: Jul 7, 2025Updated: Jul 30, 2025 Sources: CVE List NVD GHSA BDUCWE-776
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 66.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-776

Affected Products

llamaindexllamaindex
Library
AI / ML / llm-serving-inference
llama-index-readers-papersPyPIOSS Libraries
LlamaIndexСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
run-llama/llama_indexrun-llama
Library
AI / ML / ai-agent-tooling
llamaindexoss-projectAI / MLaka llama index, llamaindex.ai
pypipackage-ecosystemOSS Libraries
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
run-llamaoss-projectAI / ML

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584
github.com
https://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2
huntr.com
https://nvd.nist.gov/vuln/detail/CVE-2025-3225
nvd.nist.gov
and 4 more references View all →

Timeline

Published
Jul 7, 2025
Last Updated
Jul 30, 2025

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