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CVE-2025-5302

26
FAUCET Score

CVE-2025-5302 is a denial of service vulnerability in the JSONReader component of run-llama/llama_index, specifically in version v0.12.37. It arises from uncontrolled recursion when processing deeply nested JSON files, causing Python to exceed its recursion depth limit, leading to high resource consumption and potential process crashes. This vulnerability is rated 8.6 HIGH (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H), indicating it can be exploited remotely with low complexity and no user interaction, primarily impacting availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Run-LlamaRun-Llama/Llama Index
>= unspecified, < 0.12.38CNA affected

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 4th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: llama-index-coreFixed in: 0.12.38
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 2.5 for RHEL 8Fixed in: ansible-automation-platform-25/lightspeed-chatbot-rhel8:2.5.250924-1
View patch

Vendor Advisories (2)

pipGHSA-7753-xrfw-ch36high

LlamaIndex affected by a Denial of Service (DOS) in JSONReader

Aug 26, 2025
redhatCVE-2025-5302Important

llama_index: Denial of Service (DOS) in JSONReader in run-llama/llama_index

Aug 25, 2025

References

github.com / run-llama/llama_index/commit/c032843a02ce38fd8f284b2aa5a37fd1c17ae635
huntr.com / bounties/70041b81-de9e-4046-8c0e-6ccd557048a6