Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

Header | Field | Value | |---|---| | Title | Extension-denylist bypass via case-folding asymmetry in name-override path incomplete-fix variant of CVE-2026-27641 | | Project | Flask-Reuploaded flaskuploads | | Affected | extension"shell.php" = "php" - extensionallowed"php" - DENY correct...

CVE-2026-45336 HireFlow: Use of Hard-coded Credentials

HireFlow is a web-based interview management system for managing candidates, scheduling interviews, and tracking hiring progress. In 1.2 and earlier, app.py assigns a hard-coded Flask secretkey used to sign session cookies, allowing unauthenticated attackers who know the public source value to...

EUVD-2026-44987

HireFlow is a web-based interview management system for managing candidates, scheduling interviews, and tracking hiring progress. In 1.2 and earlier, app.py assigns a hard-coded Flask secretkey used to sign session cookies, allowing unauthenticated attackers who know the public source value to...

CVE-2026-45336 HireFlow: Use of Hard-coded Credentials

HireFlow is a web-based interview management system for managing candidates, scheduling interviews, and tracking hiring progress. In 1.2 and earlier, app.py assigns a hard-coded Flask secretkey used to sign session cookies, allowing unauthenticated attackers who know the public source value to...

EUVD-2026-44972

zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask proxy route accepts an absolute URL in the request path and passes it to urllib.parse.urljoin, allowing the requested path to replace the configured target host and causing...

PT-2026-60526

HireFlow is a web-based interview management system for managing candidates, scheduling interviews, and tracking hiring progress. In 1.2 and earlier, app.py assigns a hard-coded Flask secret key used to sign session cookies, allowing unauthenticated attackers who know the public source value to...

CVE-2026-45568: Improper Limitation of a Pathname to a Restricted Directory

zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask proxy route accepts an absolute URL in the request path and passes it to urllib.parse.urljoin, allowing the requested path to replace the configured target host and causing...

vulnlab

vulnlab 🔓 !CI Statushttps://github.com/37Linard/vulnlab/a...

Security Bulletin: Vulnerability in Flask-HTTPAuth bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging include the Flask-HTTPAuth library, which is affected by an improper authentication vulnerability. CVE-2026-34531 Vulnerability Details CVEID:CVE-2026-34531 DESCRIPTION: Flask-HTTPAuth provides Basic, Digest and Token HTTP...

Exploit for Improper Input Validation in Pyyaml

Seal Security — Python pip Example A minimal, intentionally...

Serena: Unauthenticated Flask dashboard on fixed port enables DNS rebinding → memory poisoning → RCE

SummarySerena's built-in web dashboard exposes an unauthenticated Flask API on a fixed, predictable port TCP 24282, hardcoded as 0x5EDA in constants.py. The server has no authentication, no CSRF protection, and no Host header validation. A DNS rebinding attack allows a malicious webpage to reach...

Lemur has an authorization bypass in StrictRolePermission / AuthorityCreatorPermission

SummaryStrictRolePermission and AuthorityCreatorPermission in lemur/auth/permissions.py call flaskprincipal.Permission.init with zero Needs when their config flags are unset. Both flags defaulted to False in code prior to the fix, so this was the state of any Lemur install that hadn't explicitly...

PYSEC-2026-2588 Lemur has an authorization bypass in StrictRolePermission / AuthorityCreatorPermission

Summary StrictRolePermission and AuthorityCreatorPermission in lemur/auth/permissions.py call flaskprincipal.Permission.init with zero Needs when their config flags are unset. Both flags defaulted to False in code prior to the fix, so this was the state of any Lemur install that hadn't explicitly...

Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Summary Flask-Security-Too 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth...

PYSEC-2026-2478 Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Summary Flask-Security-Too 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth...

PYSEC-2026-2998 pyLoad Has Incomplete Fix for CVE-2026-33509 -storage_folder Bypass via Session Directory in pyLoad

Summary The fix for CVE-2026-33509 prevents setting storagefolder inside PKGDIR or userdir, but does NOT protect the Flask session directory /tmp/pyLoad/flask. An authenticated attacker can set storagefolder to the session directory and download session files of other users via /files/get/, leadi...

pyLoad Has Incomplete Fix for CVE-2026-33509 -storage_folder Bypass via Session Directory in pyLoad

SummaryThe fix for CVE-2026-33509 prevents setting storagefolder inside PKGDIR or userdir, but does NOT protect the Flask session directory /tmp/pyLoad/flask. An authenticated attacker can set storagefolder to the session directory and download session files of other users via /files/get/, leadin...

PraisonAI ships and generates a legacy API server with authentication disabled by default, allowing unauthenticated workflow execution

SummaryPraisonAI ships a legacy Flask API server with authentication disabled by default. When that server is used, any caller that can reach it can access /agents and trigger the configured agents.yaml workflow through /chat without providing a token. DetailsThe vulnerable server is the shipped...

PYSEC-2026-2904 PraisonAI ships and generates a legacy API server with authentication disabled by default, allowing unauthenticated workflow execution

Summary PraisonAI ships a legacy Flask API server with authentication disabled by default. When that server is used, any caller that can reach it can access /agents and trigger the configured agents.yaml workflow through /chat without providing a token. Details The vulnerable server is the shippe...

CKAN has CSRF exemption primed by anonymous requests

Views can be marked as exempt from CSRF protection Access to the views via tokens or unauthenticated requests marked the endpoint as not requiring CSRF protection. The marking was a member variable in flask-wtf.csrf.CSRFProtect, which was stored as a module level variable in the flaskapp...