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CVE-2025-3108

22
FAUCET Score

CVE-2025-3108 is a critical deserialization vulnerability in the run-llama/llama_index library's JsonPickleSerializer component, impacting versions v0.12.27 through v0.12.40. This flaw allows remote code execution due to an insecure fallback to Python's pickle module, which can execute arbitrary code from untrusted data. With a CVSS score of 7.5 (HIGH), exploitation requires user interaction but can lead to full system compromise, including high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.12.27, < 0.12.41CPE matchmatch criteria
cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.0MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.6
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 29th percentile among its peer group of 1,571 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: llama-index-coreFixed in: 0.12.41

Vendor Advisories (1)

pipGHSA-m84c-4c34-28gfmedium

LlamaIndex has Incomplete Documentation of Program Execution related to JsonPickleSerializer component

Jul 7, 2025

References

github.com / run-llama/llama_index/commit/702e4340623092fac4cf2fe95eb9465034856da3
Patch
huntr.com / bounties/9b55a5e8-74e6-4241-b323-e360dc8b110a
ExploitThird Party Advisory