CVE-2023-34541

Langchain vulnerable to arbitrary code execution

9.8 CriticalFix available

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.94%Up 0.9 points since Jun 21, 2023

What each source reports

NVD Score used 9.8

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: CVE-2023-34541
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

CVE List 9.8

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: CVE-2023-34541
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2023-0121 9.8

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: EUVD-2023-0121
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6643-h7h5-x9wh 9.3

Langchain vulnerable to arbitrary code execution

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: GHSA-6643-h7h5-x9wh
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV 9.8

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: CVE-2023-34541
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-6643-h7h5-x9wh 9.3

Langchain vulnerable to arbitrary code execution

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: GHSA-6643-h7h5-x9wh
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVPYSEC-2023-92 No score

Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.

Record: PYSEC-2023-92
Updated: 2026-11-02

Affected products

langchain

Affected packages

Affected packages
Package	Affected	Fixed
`langchain` PyPI	before 0.0.247	0.0.247
`langchain` PyPI	before 0.0.247, plus listed versions 0.0.10.0.100.0.1000.0.1010.0.101rc0 Show 45 moreShow less 0.0.1020.0.102rc00.0.1030.0.1040.0.1050.0.1060.0.1070.0.1080.0.1090.0.110.0.1100.0.1110.0.1120.0.1130.0.1140.0.1150.0.1160.0.1170.0.1180.0.1190.0.120.0.1200.0.1210.0.1220.0.1230.0.1240.0.1250.0.1260.0.1270.0.1280.0.1290.0.130.0.1300.0.1310.0.1320.0.1330.0.1340.0.1350.0.1360.0.1370.0.1380.0.1390.0.140.0.1400.0.141	0.0.247

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-34541 is a critical vulnerability (CVSS 9.8) in Langchain, published June 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. Fixed in langchain 0.0.247.

References

This page doesn't list everything

Left out here: 200 versions. The JSON record has them.