CVE-2026-12822

langflow-ai langflow Bundle URL Loader code injection

4.8 Medium

A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.28%Up 0.1 points since Jun 23, 2026

What each source reports

CVE List Score used 4.8

langflow-ai langflow Bundle URL Loader code injection

Record: CVE-2026-12822
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CVSS 2.0: 4.3 AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Weakness: CWE-94, CWE-74
Updated: 2026-11-02

EUVDEUVD-2026-38203 4.8

Record: EUVD-2026-38203
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Updated: 2026-11-02

GitHub AdvisoriesGHSA-fxq6-8jqq-rh9v 1.9

A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown...

Record: GHSA-fxq6-8jqq-rh9v
CVSS 4.0: 1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness: CWE-74
Updated: 2026-11-02

NVD 1.9

Record: CVE-2026-12822
CVSS 4.0: 1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 4.3 MediumAV:L/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-74, CWE-94
Updated: 2026-11-02

OSV 1.9

langflow-ai langflow Bundle URL Loader code injection

Record: CVE-2026-12822
CVSS 4.0: 1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Weakness: CWE-74, CWE-94
Updated: 2026-11-04

Affected products

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-12822 is a medium vulnerability (CVSS 4.8) in Langflow, published June 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.