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CVE-2023-29374

53
FAUCET Score

CVE-2023-29374 is a critical prompt injection vulnerability (CVSS 9.8) affecting LangChain versions through 0.0.131. This flaw in the LLMMathChain allows attackers to execute arbitrary code via the Python exec method, leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion, indicating awareness among security researchers. Organizations using affected LangChain versions should prioritize patching to mitigate this severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.0.131CPE matchmatch criteria
cpe:2.3:a:langchain:langchain:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
39.65%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3965 is in the 96th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

pipGHSA-fprp-p869-w6q2critical

LangChain vulnerable to code injection

Apr 5, 2023

References

github.com / hwchase17/langchain/issues/1026
Issue Tracking
github.com / hwchase17/langchain/issues/814
ExploitIssue TrackingPatch
github.com / hwchase17/langchain/pull/1119
Patch
twitter.com / rharang/status/1641899743608463365/photo/1
Exploit