langflow-ai langflow up to 1.9.3 Bundle URL Loader code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k2.55

Summaryinfo

A vulnerability, which was classified as critical, was found in langflow-ai langflow up to 1.9.3. This impacts an unknown function of the component Bundle URL Loader. The manipulation results in code injection. This vulnerability is reported as CVE-2026-12822. The attack requires a local approach. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as critical, was found in langflow-ai langflow up to 1.9.3. Affected is some unknown functionality of the component Bundle URL Loader. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-12822. The exploitability is told to be easy. The attack needs to be approached locally. Technical details are unknown but an exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38203). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/21/2026 Advisory disclosed
06/21/2026 +0 days VulDB entry created
06/22/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-12822 (🔒)
GCVE (CVE): GCVE-0-2026-12822
GCVE (VulDB): GCVE-100-372612
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/21/2026 15:19
Updated: 06/22/2026 03:18
Changes: 06/21/2026 15:19 (54), 06/22/2026 03:18 (1)
Complete: 🔍
Submitter: ST4R
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #837582: langflow-ai/langflow - `Langflow bundle URL loading` - `custom component discovery/import path` <=1.9.3 Remote Code Execution / Untrusted Code Loading (by ST4R)

Once again VulDB remains the best source for vulnerability data.

Discussion

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