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OpenAdvisories

Vendor

pyload

49 known vulnerabilities.

pyload at a glance

Last 12 months
27
Critical · all time
9
Exploited · all time
0
Public exploit · all time
3
New vulnerabilities per month · last 12 months
0 5 10 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 6 vulnerabilities, 1 critical Mar April 2026: 9 vulnerabilities, 1 critical May 2026: 8 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 2 vulnerabilities Sep October 2026: 2 vulnerabilities November 2026: 0 vulnerabilities
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49 results · Feed

  • Medium 5.3

    pyLoad: Unauthenticated access to /web/<path:filename> bypasses authentication on sensitive templates and leaks internal error details via exception attribute typo

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, the `/web/<path:filename>` route in `src/pyload/webui/app/blueprints/app_blueprint.py` renders Jinja2 templates without any authentication requirement. Every equival…

  • Medium 6.5

    pyLoad: Lack of Input Size Validation Leads to Denial of Service (DoS) and Process Termination

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, the API `rpc` function in `api_blueprint.py` handles `multipart/form-data` uploads by reading the whole content of the uploaded file into memory with `file.read()`. …

  • Medium 6.5

    pyLoad: Unbounded Memory Growth Leading to DoS and Potential DDoS in EventManager

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, EventManager in src/pyload/core/managers/event_manager.py appends a Client object to the clients list for each unique uuid submitted to the authenticated getEvents A…

  • Medium 4.9

    pyLoad: SSRF guard bypass via IPv6 6to4/NAT64 transition wrappers of internal IPs

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, is_global_address in src/pyload/core/utils/web/check.py relies on Python's global-address classification without examining IPv4 destinations embedded in 6to4 or NAT6…

  • Medium 6.5

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

    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 storage_folder inside PKGDIR or userdir, but does NOT protect the Flask session directory (/tmp/pyLoad/flask). An authent…

  • High 8.7

    pyLoad: Stored XSS in Downloads view via unsanitized link URL in packages.js template literal

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quot…

  • Medium 5.0

    pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API

    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 parse_urls API). An authenticated attacker can supply a URL pointing to an atta…

  • Medium 5.3

    pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/<path:filename> is reachable without authentication and render…

  • High 8.1

    pyLoad: Path Traversal via Package Folder Name in set_package_data

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, when passing a folder name in the set_package_data() API function call inside the data object with key "_folder", there is no sanitization at all, allowing a user wi…

  • Medium 6.5

    pyLoad: Path Traversal via Package Folder Name

    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…

  • Medium 6.8

    pyload-ng: non-admin SETTINGS users can disable outbound TLS peer verification

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the set_config_value() API method (@permission(Perms.SETTINGS)) in src/pyload/core/api/__init__.py gates security-sensitive options behind a hand-maintained allowlis…

  • High 8.3

    pyload-ng: non-admin SETTINGS users can redirect all outbound traffic through an attacker-controlled proxy

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the set_config_value() API method (@permission(Perms.SETTINGS)) in src/pyload/core/api/__init__.py gates security-sensitive options behind a hand-maintained allowlis…

  • High 8.8

    pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)

    pyLoad is a free and open-source download manager written in Python. Versions up to and including 0.5.0b3.dev97 cache `role` and `permission` in the session at login and continues to authorize requests using these cached values, even after an admin changes th…

  • Medium 4.8

    pyLoad: Session Cookie Security Downgrade via Untrusted X-Forwarded-Proto Header Spoofing (Global State Race Condition)

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev98, the set_session_cookie_secure before_request handler in src/pyload/webui/app/__init__.py reads the X-Forwarded-Proto header from any HTTP request without validating t…

  • Medium 5.4

    pyLoad WebUI JSON permission mismatch lets ADD/DELETE users invoke MODIFY-only actions

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the /json/package_order, /json/link_order, and /json/abort_link WebUI JSON endpoints enforce weaker permissions than the core API methods they invoke. This allows aut…

  • Medium 5.3

    pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._safe_extractall via os.path.commonprefix Bypass

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the _safe_extractall() function in src/pyload/plugins/extractors/UnTar.py uses os.path.commonprefix() for its path traversal check, which performs character-level str…

  • Medium 6.8

    Authorization Bypass for SSL Certificate/Key Configuration Due to Option Name Mismatch in pyload-ng

    pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the ADMIN_ONLY_CORE_OPTIONS authorization set in set_config_value() uses incorrect option names ssl_cert and ssl_key, while the actual configuration option names are …

  • High 7.5

    pyLoad has an incomplete fix for CVE-2026-33509: unprotected storage_folder enables arbitrary file write to Flask session store and code execution

    pyLoad is a free and open-source download manager written in Python. The fix for CVE-2026-33509 added an ADMIN_ONLY_OPTIONS set to block non-admin users from modifying security-critical config options. The storage_folder option is not in this set and passes t…

  • High 8.8

    pyLoad has Improper Neutralization of Special Elements used in an OS Command

    pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the ADMIN_ONLY_OPTIONS protection mechanism restricts security-critical configuration values (reconnect scripts, SSL certs, proxy credentials) to admin-only acc…

  • Critical 9.3

    pyLoad has SSRF fix bypass via HTTP redirect

    pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, pyLoad has a server-side request forgery (SSRF) vulnerability. The fix for CVE-2026-33992 added IP validation to BaseDownloader.download() that checks the hostn…

  • High 7.7

    pyLoad has SSRF in parse_urls API endpoint via unvalidated URL parameter

    pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol…

  • Critical 9.3

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

    pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery (SSRF) attacks. An authenticated attacker can exploit…

  • High 8.8

    pyload-ng: Authentication Bypass via Host Header Injection in ClickNLoad

    pyLoad is a free and open-source download manager written in Python. From version 0.4.20 to before version 0.5.0b3.dev97, the local_check decorator in pyLoad's ClickNLoad feature can be bypassed by any remote attacker through HTTP Host header spoofing. This a…

  • High 7.5

    pyload-ng: SETTINGS Permission Users Can Achieve Remote Code Execution via Unrestricted Reconnect Script Configuration

    pyLoad is a free and open-source download manager written in Python. From version 0.4.0 to before version 0.5.0b3.dev97, the set_config_value() API endpoint allows users with the non-admin SETTINGS permission to modify any configuration option without restric…

  • Medium 6.5

    pyload-ng: Improper Authentication and Origin Validation Error

    pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, a Host Header Spoofing vulnerability in the @local_check decorator allows unauthenticated external attackers to bypass local-only restrictions. This grants ac…

  • High 8.1

    pyLoad: Arbitrary File Deletion via Path Traversal during Encrypted 7z Password Verification

    pyLoad is a free and open-source download manager written in Python. Versions before 0.5.0b3.dev97 are vulnerable to path traversal during password verification of certain encrypted 7z archives (encrypted files with non-encrypted headers), causing arbitrary f…

  • High 7.1

    pyLoad: Arbitrary File Write via Path Traversal in edit_package()

    pyLoad is a free and open-source download manager written in Python. From version 0.5.0b3.dev13 to 0.5.0b3.dev96, the edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass st…

  • High 8.1

    pyLoad CNL and captcha handlers allow code Injection via unsanitized parameters

    pyLoad is a free and open-source download manager written in Python. In versions prior to 0.5.0b3.dev91, pyLoad web interface contained insufficient input validation in both the Captcha script endpoint and the Click'N'Load (CNL) Blueprint. This flaw allowed u…

  • High 7.7

    Denial-of-Service attack in pyLoad CNL Blueprint using dukpy.evaljs

    pyLoad is the free and open-source Download Manager written in pure Python. The jk parameter is received in pyLoad CNL Blueprint. Due to the lack of jk parameter verification, the jk parameter input by the user is directly determined as dykpy.evaljs(), result…

  • High 7.8

    PyLoad vulnerable to SQL Injection via API /json/add_package in add_links parameter

    pyLoad is the free and open-source Download Manager written in pure Python. Prior to version 0.5.0b3.dev91, the parameter add_links in API /json/add_package is vulnerable to SQL Injection. Attackers can modify or delete data in the database, causing data erro…

  • Critical 9.8

    pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE)

    pyLoad is the free and open-source Download Manager written in pure Python. In versions 0.5.0b3.dev89 and below, there is an opportunity for path traversal in pyLoad-ng CNL Blueprint via package parameter, allowing Arbitrary File Write which leads to Remote C…

  • High 7.5

    pyLoad has Path Traversal Vulnerability in json/upload Endpoint that allows Arbitrary File Write

    pyLoad is a free and open-source Download Manager written in pure Python. In version 0.5.0b3.dev89, an authenticated path traversal vulnerability exists in the /json/upload endpoint of pyLoad. By manipulating the filename of an uploaded file, an attacker can …

  • Critical 9.8

    pyLoad vulnerable to remote code execution through js2py onCaptchaResult

    pyload is an open-source Download Manager written in pure Python. 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 bac…

  • High 8.7

    pyLoad is vulnerable to attacks that bypass localhost restrictions, enabling the creation of arbitrary packages

    Any unauthenticated attacker can bypass the localhost restrictions posed by the application and utilize this to create arbitrary packages

  • Medium 4.6

    Open Redirection in pyload/pyload

    An open redirection vulnerability exists in pyload/pyload version 0.5.0. The vulnerability is due to improper handling of the 'next' parameter in the login functionality. An attacker can exploit this vulnerability to redirect users to malicious sites, which c…

  • Critical 9.1

    pyLoad vulnerable to remote code execution by download to /.pyload/scripts using /flashgot API

    pyLoad is a free and open-source Download Manager. The folder `/.pyload/scripts` has scripts which are run when certain actions are completed, for e.g. a download is finished. By downloading a executable file to a folder in /scripts and performing the respect…

  • Critical 9.1

    pyLoad allows upload to arbitrary folder lead to RCE

    pyload is an open-source Download Manager written in pure Python. An authenticated user can change the download folder and upload a crafted template to the specified folder lead to remote code execution. There is no fix available at the time of publication.

  • Medium 4.7

    pyLoad open redirect vulnerability due to improper validation of the is_safe_url function

    pyLoad is an open-source Download Manager written in pure Python. There is an open redirect vulnerability due to incorrect validation of input values when redirecting users after login. pyLoad is validating URLs via the `get_redirect_url` function when redire…

  • Critical 9.7
    CVE-2024-22416 Public exploit

    Cross-Site Request Forgery on any API call in pyLoad may lead to admin privilege escalation

    pyLoad is a free and open-source Download Manager written in pure Python. The `pyload` API allows any API call to be made using GET requests. Since the session cookie is not set to `SameSite: strict`, this opens the library up to severe attack possibilities v…

  • High 7.5
    CVE-2024-21644 Public exploit EPSS 42%

    pyLoad unauthenticated flask configuration leakage

    pyLoad is the free and open-source Download Manager written in pure Python. Any unauthenticated user can browse to a specific URL to expose the Flask config, including the `SECRET_KEY` variable. This issue has been patched in version 0.5.0b3.dev77.