Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / langflow/PYSEC-2026-244
Advisory ID pypa/langflow/PYSEC-2026-244
Aliases CVE-2026-48520
GHSA-rcjh-r59h-gq37
PYSEC-2026-244
Summary Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.
Status Published
Exploitability 0.5
Weighted Severity 5.5
Risk 2.8
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 6.1 https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-244.yaml
Reference id Reference type URL
https://github.com/langflow-ai/langflow/security/advisories/GHSA-rcjh-r59h-gq37
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N Found at https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-244.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-24T14:18:15Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/48xxx/CVE-2026-48520.json

Source Advisory: vulnrichment/CVE-2026-48520

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]