HOMEVULNERABILITIESCVE-2025-3225
HIGH

CVE-2025-3225

CWE-776Published: July 7, 2025· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-3225 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

llamaindex1 product(s)
llamaindex
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584
ADVISORYhttps://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2

All References (2)

→
https://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584Patch
→
https://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2025-3225
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-776
CISA KEVNo
Affected1 vendor(s)
PublishedJul 7, 2025

Related CVEs (CWE-776)

CVE-2013-4335
9.8
CVE-2014-2228
9.8
CVE-2019-19144
9.8
CVE-2021-23926
9.1
CVE-2020-24590
9.1
CVE-2024-28982
8.2

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-3225 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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