CVE-2025-5302: LlamaIndex Denial of Service in JSONReader
LlamaIndex, llama-index-core
A denial of service vulnerability exists in the JSONReader component of LlamaIndex due to uncontrolled recursion when parsing deeply nested JSON files. The issue can cause high resource consumption and process crashes, and has been patched in version 0.12.38.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 8.6
- EPSS
- <0.01 · top 79% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 26 Aug 2025
- last update
- 26 Aug 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-08-26CVE-2025-5302: LlamaIndex affected by a Denial of Service (DOS) in JSONReaderGitHub Advisory Database · github.com/advisories/GHSA-7753-xrfw-ch36
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 26 Aug 2025 · first reported 26 Aug 2025
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 07:00Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
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the brief as text
# CVE-2025-5302: LlamaIndex Denial of Service in JSONReader https://gcdradar.vercel.app/incidents/cve-2025-5302-llamaindex-denial-of-service-in-jsonreader · AIR-2025-0329 · closed 2025-08-26 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-08-26 - AI role: Attack on AI - Products: LlamaIndex, llama-index-core - CVE ids: CVE-2025-5302 - CVSS: 8.6 ## Summary A denial of service vulnerability exists in the JSONReader component of LlamaIndex due to uncontrolled recursion when parsing deeply nested JSON files. The issue can cause high resource consumption and process crashes, and has been patched in version 0.12.38. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-08-26: CVE-2025-5302: LlamaIndex affected by a Denial of Service (DOS) in JSONReader (https://github.com/advisories/GHSA-7753-xrfw-ch36) ## Sources - 2025-08-26 GitHub Advisory Database: CVE-2025-5302: LlamaIndex affected by a Denial of Service (DOS) in JSONReader https://github.com/advisories/GHSA-7753-xrfw-ch36 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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AI