CVE-2026-54567: Improper Handling of Case Sensitivity

Flask-Reuploaded provides file uploads for Flask. From 1.5.0 until 1.6.0, UploadSet.savestorage, name=... in src/flaskuploads/flaskuploads.py applies lowercaseext to the default upload path but uses the case-preserving extension helper for a caller-supplied name before extensionallowed evaluates ...

CLSA-2026-1789123062 TuxCare security update for flask-cors (3 CVEs)

TuxCare rebuilt flask-cors to address 3 CVEs. Fixed in 5.0.1.post1+tuxcare...

Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.

Summary Maximo AI Service uses langchain-text-splitters 0.3.9, flask 3.1.0, coreutils 8.32-39.el9 and libxml2 2.9.13-14.el98.1 which are vulnerable to PSIRT-GHSA-fv5p-p927-qmxr, CVE-2025-47278, CVE-2026-27205, CVE-2025-5278 and CVE-2025-6170. This bulletin contains information regarding the...

Python-Example

Seal Security — Exemple Python pip Une application Flask minimale et intentionnellement vulnérable utilisée pour démontrer, de bout en bout, comment Seal Security corrige une CVE connue en remplaçant une dépendance vulnérable par une version scellée rétroportée, prête à l'emploi — sans aucune...

MAL-2026-15566 Malicious code in flask-header-guard (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e5e0cbaefa0fcface340b03a236573ed70df9b4d7773715321df057a9862e3f8 The package is presented as Flask security-headers middleware but ships a hostile payload wired to fire at install time and again whenever the librar...

Malicious code in flask-header-guard (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e5e0cbaefa0fcface340b03a236573ed70df9b4d7773715321df057a9862e3f8 The package is presented as Flask security-headers middleware but ships a hostile payload wired to fire at install time and again whenever the librar...

CLSA-2026-1787900734 TuxCare security update for flask-cors (1 CVE)

TuxCare rebuilt flask-cors to address 1 CVE. Fixed in 4.0.2.post3+tuxcare...

...[ More ]

kamalpanse18 EmpManageX, a Flask-based employee management application, ships hard-coded administrative credentials in its authentication logic. The username admin and the plaintext password admin123 are module-level constants in app.py, compared directly against the values submitted to the...

CVE-2026-78553

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secretkey file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access th...

CVE-2026-78553 Insecure Flask Secret-Key File Permissions Allow Local Administrator Session Forgery in RansomLook

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secretkey file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access th...

CVE-2026-78553 Insecure Flask Secret-Key File Permissions Allow Local Administrator Session Forgery in RansomLook

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secretkey file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access th...

CVE-2026-78553 Insecure Flask Secret-Key File Permissions Allow Local Administrator Session Forgery in RansomLook

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secretkey file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access th...

EUVD-2026-65089

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secretkey file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access th...

PT-2026-81014

RansomLook created its Flask session-signing key without explicitly restricting the file permissions. The secret key file was created using the process's default permissions and umask, resulting in permissions such as 0644 under a common 022 umask. Consequently, other local users able to access t...

CVE-2026-54134

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILEUPLOAD permission to inject reserved internal upload fields...

CVE-2026-54134

OctoPrint (web interface for 3D printers) versions prior to 1.11.8 and 2.0.0rc3 are vulnerable to file exfiltration via parser differentials between its custom Tornado upload handler and Flask/Werkzeug. An attacker with FILE_UPLOAD permission can inject reserved internal form fields through query...

EUVD-2026-64044

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILEUPLOAD permission to inject reserved internal upload fields...

CVE-2026-54134 OctoPrint: File exfiltration possible via query parameters on upload endpoints

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILEUPLOAD permission to inject reserved internal upload fields...

CVE-2026-54134: External Control of File Name or Path

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILEUPLOAD permission to inject reserved internal upload fields...

CVE-2026-70667

creationtimestamp| type| source ---|---|--- 2026-08-18 22:35:16+00:00| published-proof-of-concept| https://github.com/Netflix/lemur/security/advisories/GHSA-f3qq-49m6-rw8f 2026-08-19 08:31:37+00:00| seen| https://gist.github.com/alon710/db3f4019c2372dbb6dfede560d6093f7...