langflow-ai langflow up to 1.8.3 Flow Using API core.py remove_api_keys/has_api_terms credentials storage

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.5$0-$5k3.09

Summaryinfo

A vulnerability classified as problematic was found in langflow-ai langflow up to 1.8.3. The affected element is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. Such manipulation leads to credentials storage. This vulnerability is uniquely identified as CVE-2026-6597. The attack can be launched remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in langflow-ai langflow up to 1.8.3 and classified as problematic. Affected by this issue is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. The manipulation with an unknown input leads to a credentials storage vulnerability. Using CWE to declare the problem leads to CWE-256. Storing a password in plaintext may result in a system compromise. Impacted is confidentiality.

The advisory is shared for download at gist.github.com. This vulnerability is handled as CVE-2026-6597. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1552.

The exploit is available at gist.github.com. 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.5

VulDB Base Score: 2.7
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Credentials storage
CWE: CWE-256 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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

04/19/2026 Advisory disclosed
04/19/2026 +0 days VulDB entry created
04/19/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-6597 (🔒)
GCVE (CVE): GCVE-0-2026-6597
GCVE (VulDB): GCVE-100-358232
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/19/2026 15:52
Changes: 04/19/2026 15:52 (58)
Complete: 🔍
Submitter: Eric-d
Cache ID: 216::103

Submitinfo

Accepted

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