Langchain SQL Injection vulnerability

published 2023-10-21 3y ago modified 2026-10-27 18d ago also CVE-2023-32785 , PYSEC-2026-372

cvss: 9.8; version 3.1, GitHub
cisa kev: Not listed; not in CISA's catalog
epss: —; no score, EPSS covers CVEs only
public exploits: 0; none known

In Langchain before 0.0.247, prompt injection allows execution of arbitrary code against the SQL service provided by the chain.

Patch / fix

fixed in 1

pypi langchain 0.0.247

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CVSS scores

assigned by	version	score	vector
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	langchain	<0.0.247	0.0.247

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

nvd.nist.gov /vuln/detail/CVE-2023-32785
advisory
github.com /langchain-ai/langchain/issues/5923#issuecomment-1696053841
web
gist.github.com /rharang/9c58d39db8c01db5b7c888e467c0533f
web
github.com /langchain-ai/langchain
package
github.com /pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2026-372.yaml
web
pypi.org /project/langchain
web, package
github.com /advisories/GHSA-8h5w-f6q9-wg35
advisory

Sources

GitHub Advisory GHSA-8h5w-f6q9-wg35
OSV PYSEC-2026-372

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