LlamaIndex vulnerable to DoS through recursive JSON parsing
llama_index
A stack overflow vulnerability in LlamaIndex JSONReader permits denial-of-service attacks using deeply nested JSON structures. The vulnerability impacts application availability.
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
- 6.5
- EPSS
- <0.01 · top 67% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 7 Jul 2025
- last update
- 7 Jul 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-07-07CVE-2025-5472: LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsingGitHub Advisory Database · github.com/advisories/GHSA-3wxx-q3gv-pvvv
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 7 Jul 2025 · first reported 7 Jul 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
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the brief as text
# LlamaIndex vulnerable to DoS through recursive JSON parsing https://gcdradar.vercel.app/incidents/llamaindex-vulnerable-to-dos-through-recursive-json-parsing · AIR-2025-0309 · closed 2025-07-07 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-07-07 - AI role: Attack on AI - Products: llama_index - CVE ids: CVE-2025-5472 - CVSS: 6.5 ## Summary A stack overflow vulnerability in LlamaIndex JSONReader permits denial-of-service attacks using deeply nested JSON structures. The vulnerability impacts application availability. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-07-07: CVE-2025-5472: LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsing (https://github.com/advisories/GHSA-3wxx-q3gv-pvvv) ## Sources - 2025-07-07 GitHub Advisory Database: CVE-2025-5472: LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsing https://github.com/advisories/GHSA-3wxx-q3gv-pvvv Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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