PYSEC-2026-495 pyLoad: SSRF filter bypass via HTTP redirect in BaseDownloader (Incomplete fix for CVE-2026-33992)

Summary The fix for CVE-2026-33992 GHSA-m74m-f7cr-432x added IP validation to BaseDownloader.download that checks the hostname of the initial download URL. However, pycurl is configured with FOLLOWLOCATION=1 and MAXREDIRS=10, causing it to automatically follow HTTP redirects. Redirect targets are...

PYSEC-2026-497 pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration

Summary PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery SSRF attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive...

pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration

SummaryPyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery SSRF attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive...

Excessive Attack Surface in pyload-ng

Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41...

Code Injection in pyload-ng

Code Injection in GitHub repository pyload/pyload prior to 0.5.0b3.dev31...

PYSEC-2026-494 Excessive Attack Surface in pyload-ng

Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41...

PYSEC-2026-498 Code Injection in pyload-ng

Code Injection in GitHub repository pyload/pyload prior to 0.5.0b3.dev31...

pyload-ng vulnerable to RCE with js2py sandbox escape

SummaryAny pyload-ng running under python3.11 or below are vulnerable under RCE. Attacker can send a request containing any shell command and the victim server will execute it immediately. Detailsjs2py has a vulnerability of sandbox escape assigned as CVE-2024-28397, which is used by the...

PYSEC-2026-499 pyload-ng vulnerable to RCE with js2py sandbox escape

Summary Any pyload-ng running under python3.11 or below are vulnerable under RCE. Attacker can send a request containing any shell command and the victim server will execute it immediately. Details js2py has a vulnerability of sandbox escape assigned as CVE-2024-28397, which is used by the...

PYSEC-2026-493 pyLoad CNL Blueprint allows Path Traversal through `dlc_path` which leads to Remote Code Execution (RCE)

Summary Path Traversal in pyLoad-ng CNL Blueprint via package parameter allows Arbitrary File Write leading to Remote Code Execution RCE The addcrypted endpoint in pyload-ng suffers from an unsafe path construction vulnerability, allowing unauthenticated attackers to write arbitrary files outside...

pyLoad vulnerable to XSS through insecure CAPTCHA

SummaryAn unsafe JavaScript evaluation vulnerability in pyLoad’s CAPTCHA processing code allows unauthenticated remote attackers to execute arbitrary code in the client browser and potentially the backend server. Exploitation requires no user interaction or authentication and can result in sessio...

PYSEC-2026-496 pyLoad vulnerable to XSS through insecure CAPTCHA

Summary An unsafe JavaScript evaluation vulnerability in pyLoad’s CAPTCHA processing code allows unauthenticated remote attackers to execute arbitrary code in the client browser and potentially the backend server. Exploitation requires no user interaction or authentication and can result in sessi...

PT-2026-53569

Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41...

PT-2026-53572

Code Injection in GitHub repository pyload/pyload prior to 0.5.0b3.dev31...

PT-2026-53570

Summary An unsafe JavaScript evaluation vulnerability in pyLoad’s CAPTCHA processing code allows unauthenticated remote attackers to execute arbitrary code in the client browser and potentially the backend server. Exploitation requires no user interaction or authentication and can result in sessi...

PT-2026-53568

Summary Path Traversal in pyLoad-ng CNL Blueprint via package parameter allows Arbitrary File Write leading to Remote Code Execution RCE The addcrypted endpoint in pyload-ng suffers from an unsafe path construction vulnerability, allowing unauthenticated attackers to write arbitrary files outside...

PT-2026-53571

Summary PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery SSRF attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive...

CVE-2026-45306

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, 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...

CVE-2026-42314

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, package folder names are sanitized using insufficient string replacement. The pattern ....// becomes .. after replacement partial removal, leaving .. which can be exploited when the path is later resolve...

CVE-2026-46561

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the PREREQFUNCTION-based private IP check was not applied to HTTPRequest used by the parseurls API. An authenticated attacker can supply a URL pointing to an attacker-controlled server that responds with...