PT-2025-28149 · Unknown · Llama Index

Masci · CVE-2025-3225 · Published 2025-07-07 · Updated 2026-07-07

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: llama index versions v0.12.21 through v0.12.28

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. This issue 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.

Recommendations: For versions v0.12.21 through v0.12.28, update to version v0.12.29 to resolve the issue.

Exploit

Fix

DoS

XML Entity Expansion

Weakness Enumeration

CWE-776

Related Identifiers

BDU:2025-09019

CVE-2025-3225

GHSA-W42R-MRX7-C633

PYSEC-2025-250

PYSEC-2026-1570

Affected Products

Llama Index

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3225.json · Exploit
• 🔥 https://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2 · Exploit
• https://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584 · Patch
• https://osv.dev/vulnerability/CVE-2025-3225 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-1570 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-w42r-mrx7-c633 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2025-250 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-3225 · Security Note
• https://bdu.fstec.ru/vul/2025-09019 · Security Note
• https://github.com/run-llama/llama_index · Note
• https://github.com/run-llama/llama_index/pull/18362 · Note
• https://t.me/cveNotify/130325 · Telegram Post
• https://twitter.com/CVEnew/status/1942166388296101961 · Twitter Post
• https://t.me/cvenotify/127816 · Telegram Post
• https://huntr.cm/bounties/e33c0699-e9a2-49aa-837b-5363205637a2 · Note