Python process crash via unenforced crawl depth
Published May 10, 2025 · Updated Oct 15, 2025
Uncontrolled recursion in LlamaIndex before 0.3.6 allows remote attackers to crash the Python process through a crafted crawl target. KnowledgeBaseWebReader.get_article_urls recursively follows discovered links without incrementing or checking the documented max_depth value. Exploitation requires a consuming application to pass an attacker-controlled knowledge-base URL into the reader, and exhaustion of Python's recursion limit interrupts that process.
Summary
What happened
Uncontrolled recursion in LlamaIndex before 0.3.6 allows remote attackers to crash the Python process through a crafted crawl target. KnowledgeBaseWebReader.get_article_urls recursively follows discovered links without incrementing or checking the documented max_depth value. Exploitation requires a consuming application to pass an attacker-controlled knowledge-base URL into the reader, and exhaustion of Python's recursion limit interrupts that process.
The record
- CVE
- CVE-2025-1752
- Published
- May 10, 2025
- Updated
- Oct 15, 2025
- Vendor
- LlamaIndex
- Product
- LlamaIndex
- Classifications
- CWE-674, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 10, 2025CVE publishedPublication date reported by the CVE source.
- Oct 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <0.3.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Huntr proof of concept for recursive crawl denial of serviceproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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