How many CVEs have patched _validate_kb_path_containment?

1 published CVEs changed _validate_kb_path_containment in langflow-ai/langflow, in 1 distinct patches totalling 18 changed lines, between 2026 and 2026.

What is the latest CVE that changed _validate_kb_path_containment?

CVE-2026-42867 (Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint), published 2026-06-23, changed lines 38 to 55 of src/backend/base/langflow/api/v1/knowledge_bases.py.

How does _validate_kb_path_containment compare to the rest of langflow-ai/langflow?

langflow-ai/langflow has 23 CVEs with a located fix in total; 1 of them changed _validate_kb_path_containment.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

RadicalNotion.AI

Security data

Weaknesses (CWE)The MITRE CWE weakness catalog
Attack Patterns (CAPEC)MITRE CAPEC attack patterns
CNAsNumbering authorities and report cards
VendorsVulnerabilities by vendor
Patched FunctionsWhere CVE fixes land in code

Tools

CVSS CalculatorScore CVSS 4.0, 3.1, 3.0 & 2.0
Badge BuilderEmbeddable SVG badges for READMEs

Resources

LearnSecurity guides
Data SourcesCVE data sources

About Blog Pricing Demo

Home
Patched Functions
Langflow Ai
Langflow
_validate_kb_path_containment

RadicalNotion.AI

We do not sell or share your personal information.

Security Data

CWE Directory
CAPEC Directory
CNA Directory
CNA Leaderboard
CNA Report Cards
Vendor Directory
Patched Functions
Data Sources

Calculators

CVSS Calculator
CVSS 4.0
CVSS 3.1
CVSS 3.0
CVSS 2.0
Badge Builder

Platform

My Vulnerabilities
Insights
Notifications
Pricing

Learn

Guides
What is a CVE?
What is CVSS?
The CISA KEV catalog
What is EPSS?

Company

About
Blog
Careers
Contact
Demo

Account

Legal

Security
Privacy
Terms

RadicalNotion.AI

Security data

Weaknesses (CWE)The MITRE CWE weakness catalog
Attack Patterns (CAPEC)MITRE CAPEC attack patterns
CNAsNumbering authorities and report cards
VendorsVulnerabilities by vendor
Patched FunctionsWhere CVE fixes land in code

Tools

CVSS CalculatorScore CVSS 4.0, 3.1, 3.0 & 2.0
Badge BuilderEmbeddable SVG badges for READMEs

Resources

LearnSecurity guides
Data SourcesCVE data sources

About Blog Pricing Demo

Home
Patched Functions
Langflow Ai
Langflow
_validate_kb_path_containment

_validate_kb_path_containment in langflow-ai/langflow: Patched by 1 CVEs

langflow-ai/langflow

Function

_validate_kb_path_containment

Name: _validate_kb_path_containment in langflow-ai/langflow: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

src/backend/base/langflow/api/v1/knowledge_bases.py

Last patched June 23, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

_validate_kb_path_containment in langflow-ai/langflow was changed by 1 published CVE fixes in 2026, in 1 distinct patches that added or removed 18 lines in total.

langflow-ai/langflow has 23 CVEs with a located fix in total, so 4% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed _validate_kb_path_containment, newest first, with the lines each fix touched.

Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint
CVE-2026-42867 · lines 38–55 · +18 −0
Medium · CVSS 6.5
EPSS 0.5%2026-06-23

Get an alert when the next CVE fix lands in langflow-ai/langflow, with the patched functions.

Monitor langflow CVEs

Other functions in these files

Functions in the same file that CVE fixes also changed.

1create_knowledge_basesrc/backend/base/langflow/api/v1/knowledge_bases.py3 CVEs · 3 patches2026
2_resolve_kb_pathsrc/backend/base/langflow/api/v1/knowledge_bases.py3 CVEs · 3 patches2026
3_apply_folder_source_security_settingssrc/backend/base/langflow/api/v1/knowledge_bases.py2 CVEs · 1 patches2026
4ingest_folder_to_knowledge_basesrc/backend/base/langflow/api/v1/knowledge_bases.py2 CVEs · 1 patches2026
5ingest_via_connectorsrc/backend/base/langflow/api/v1/knowledge_bases.py2 CVEs · 1 patches2026

Other hotspots in the repository

Functions in langflow-ai/langflow changed by the most CVE fixes.

download_image3 CVEs · src/backend/base/langflow/api/v1/files.py _resolve_kb_path3 CVEs · src/backend/base/langflow/api/v1/knowledge_bases.py create_knowledge_base3 CVEs · src/backend/base/langflow/api/v1/knowledge_bases.py get_flow_by_id_or_endpoint_name3 CVEs · src/backend/base/langflow/helpers/flow.py get_client_ip2 CVEs · src/backend/base/langflow/api/v1/mcp_projects.py validate_command2 CVEs · src/backend/base/langflow/api/v2/schemas.py

All patched functions in langflow-ai/langflow

Frequently asked questions

Common questions about CVE fixes to _validate_kb_path_containment.

How many CVEs have patched _validate_kb_path_containment?: 1 published CVEs changed _validate_kb_path_containment in langflow-ai/langflow, in 1 distinct patches totalling 18 changed lines, between 2026 and 2026.
What is the latest CVE that changed _validate_kb_path_containment?: CVE-2026-42867 (Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint), published 2026-06-23, changed lines 38 to 55 of src/backend/base/langflow/api/v1/knowledge_bases.py.
How does _validate_kb_path_containment compare to the rest of langflow-ai/langflow?: langflow-ai/langflow has 23 CVEs with a located fix in total; 1 of them changed _validate_kb_path_containment.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

src/backend/base/langflow/api/v1/knowledge_bases.py on GitHub (opens in a new tab)
All patched functions in langflow-ai/langflow
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

Track langflow-ai/langflow CVEs

Get an alert when a new CVE lands in this repository, with the patched functions and AI-written remediation guidance.

Create an account See pricing

On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References