Low-order Point Validation Failure

github.com/cloudflare/circl is vulnerable to low-order point validation failure. The vulnerability is due to the failure to validate user-supplied low-order points during the Diffie-Hellman key exchange, which can allow attackers to force the identity point and compromise session security...

CVE-2025-0651

Improper Privilege Management vulnerability in Cloudflare WARP on Windows allows File Manipulation. User with a low system privileges can create a set of symlinks inside the C:\ProgramData\Cloudflare\warp-diag-partials folder. After triggering the 'Reset all settings" option the WARP service will...

CVE-2023-6992

Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation deflate.c. The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression...

CVE-2023-1862

Cloudflare WARP client for Windows up to v2023.3.381.0 allowed a malicious actor to remotely access the warp-svc.exe binary due to an insufficient access control policy on an IPC Named Pipe. This would have enabled an attacker to trigger WARP connect and disconnect commands, as well as obtaining...

CVE-2023-1412

An unprivileged non-admin user can exploit an Improper Access Control vulnerability in the Cloudflare WARP Client for Windows = 2022.12.582.0 to perform privileged operations with SYSTEM context by working with a combination of opportunistic locks oplock and symbolic links which can both be creat...

CVE-2023-6289

The Swift Performance Lite WordPress plugin before 2.3.6.15 does not prevent users from exporting the plugin's settings, which may include sensitive information such as Cloudflare API tokens...

CVE-2023-2754

The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is connected to WARP over an IPv6-capable network, te WARP client did not assign loopback IPv6 addresses...

CVE-2023-43805

Nexkey is a fork of Misskey, an open source, decentralized social media platform. Prior to version 12.121.9, incomplete URL validation can allow users to bypass authentication for access to the job queue dashboard. Version 12.121.9 contains a fix for this issue. As a workaround, it may be possibl...

CVE-2022-2147

Cloudflare Warp for Windows from version 2022.2.95.0 contained an unquoted service path which enables arbitrary code execution leading to privilege escalation. The fix was released in version 2022.3.186.0...

CVE-2022-2145

Cloudflare WARP client for Windows up to v. 2022.5.309.0 allowed creation of mount points from its ProgramData folder. During installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files...

Pingora 安全漏洞

Pingora is a Cloudflare open source library for building fast, reliable and evolvable web services. A security vulnerability exists in Pingora that stems from request smuggling and could lead to unauthorized request execution and cache poisoning...

Authorities Carry Out Elaborate Global Takedown of Infostealer Heavily Used by Cybercriminals

US, European, and Japanese authorities, along with tech companies including Microsoft and Cloudflare, say they’ve disrupted Lumma, an infostealer popular with criminal gangs...

KrebsOnSecurity Hit With Near-Record 6.3 Tbps DDoS

KrebsOnSecurity last week was hit by a near record distributed denial-of-service DDoS attack that clocked in at more than 6.3 terabits of data per second a terabit is one trillion bits of data. The brief attack appears to have been a test run for a massive new Internet of Things IoT botnet capabl...

Improper Redirect URI Validation

@cloudflare/workers-oauth-provider is vulnerable to improper redirect URI validation. The vulnerability is due to missing validation of the redirecturi during the authorization step, allowing attackers to intercept authorization codes by supplying unapproved redirect URIs...

CVE-2025-4143

The OAuth implementation in workers-oauth-provider that is part of MCP framework https://github.com/cloudflare/workers-mcp , did not correctly validate that redirecturi was on the allowed list of redirect URIs for the given client registration. Fixed in:...

CVE-2025-4144

PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework https://github.com/cloudflare/workers-mcp . However, it was found that an attacker could cause the check to be skipped. Fixed in: https://github.com/cloudflare/workers-oauth-provider/pull/27...

@cloudflare/workers-oauth-provider PKCE bypass via downgrade attack

Summary PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework. However, it was found that an attacker could cause the check to be skipped. Impact PKCE is a defense-in-depth mechanism against certain kinds of attacks and was an optional extension ...

GHSA-QGP8-V765-QXX9 @cloudflare/workers-oauth-provider PKCE bypass via downgrade attack

Summary PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework. However, it was found that an attacker could cause the check to be skipped. Impact PKCE is a defense-in-depth mechanism against certain kinds of attacks and was an optional extension ...

GHSA-7CP4-JW97-3RC2 Duplicate Advisory: @cloudflare/workers-oauth-provider missing validation of redirect_uri on authorize endpoint

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-4pc9-x2fx-p7vj. This link is maintained to preserve external references. Original Description The OAuth implementation in workers-oauth-provider that is part of MCP framework...

GHSA-VH4H-FVQF-Q9WV Duplicate Advisory: @cloudflare/workers-oauth-provider PKCE bypass via downgrade attack

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-qgp8-v765-qxx9. This link is maintained to preserve external references. Original Description PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework...