Critical Cisco Catalyst SD-WAN Manager API authentication bypass exploited in the wild (CVE-2026-76504)

Overview On September 30, 2026, Cisco published a security advisory for CVE-2026-76504, a critical API authentication bypass vulnerability affecting Cisco Catalyst SD-WAN Manager. The vulnerability has a CVSSv3.1 score of 9.8 and results from improper handling of URL encoding CWE-177. An...

CVE-2026-71307 Lemur: Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations API

Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required adminpermission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting...

CVE-2026-16269 Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling

The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API ha...

PYSEC-2026-226

vLLM is an inference and serving engine for large language models LLMs. From 0.3.0 until 0.22.0, a vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware. It allows to use the API without providing t...

CVE-2026-28205

OpenPLCV3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API...

CVE-2026-39339 ChurchCRM has an API Authentication Bypass

ChurchCRM is an open-source church management system. Prior to 7.1.0, a critical authentication bypass vulnerability in ChurchCRM's API middleware ChurchCRM/Slim/Middleware/AuthMiddleware.php allows unauthenticated attackers to access all protected API endpoints by including "api/public" anywhere...

CVE-2025-41258 LibreChat RAG API Authentication Bypass

LibreChat version 0.8.1-rc2 uses the same JWT secret for the user session mechanism and RAG API which compromises the service-level authentication of the RAG API...

CVE-2025-13315 Unauthenticated log access in Twonky Server

Twonky Server 8.5.2 on Linux and Windows is vulnerable to an access control flaw. An unauthenticated attacker can bypass web service API authentication controls to leak a log file and read the administrator's username and encrypted password...

CVE-2025-9265

Kiloview NDI N30 contains a broken authorization vulnerability that could let a remote unauthenticated attacker deactivate user verification and perform administrator actions. Affected products: Kiloview NDI N30; vulnerable component: authorization mechanism; root cause: bypass of user verificati...

EUVD-2019-10913

Malware in sbrugna...

CVE-2021-38147

Wipro Holmes Orchestrator 20.4.1 20.4.102112020 allows remote attackers to download arbitrary files, such as reports containing sensitive information, because authentication is not required for API access to processexecution/DownloadExcelFile/DomainCredentialReportExcel,...

FreeBSD : Navidrome -- Authentication bypass in Subsonic API (5ca2cafa-1f24-11f0-ab07-f8f21e52f724)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 5ca2cafa-1f24-11f0-ab07-f8f21e52f724 advisory. Deluan reports: In certain Subsonic API endpoints, authentication can be bypassed by using a non-existe...

NCSC-2025-0062

creationtimestamp| type| source ---|---|--- 2025-02-19 06:59:03+00:00| seen| https://supportportal.juniper.net/s/article/2025-02-Out-of-Cycle-Security-Bulletin-Session-Smart-Router-Session-Smart-Conductor-WAN-Assurance-Router-API-Authentication-Bypass-Vulnerability-CVE-2025-21589...

CVE-2025-23217

CVE-2025-23217 affects mitmweb (the web UI of mitmproxy). In versions 11.1.1 and earlier, a malicious client connected to mitmweb’s proxy server (default bind 0.0.0.0:8080) could reach mitmweb’s internal API (127.0.0.1:8081) through the proxy, enabling SSRF-style access that may lead to remote co...

Mitmweb API Authentication Bypass Using Proxy Server

Impact In mitmweb 11.1.0 and below, a malicious client can use mitmweb's proxy server bound to :8080 by default to access mitmweb's internal API bound to 127.0.0.1:8081 by default. In other words, while the client cannot access the API directly good, they can access the API through the proxy bad...

Exploit for Use of Incorrectly-Resolved Name or Reference in Zohocorp Manageengine_Adselfservice_Plus

CVE-2021-40539 CVE-2021-40539: ADSelfService Plus RCE Vulner...

KB API Authentication Bypass on Sentry Administrator Interface - CVE-2023-38035

Last Modified Date Sep 5, 2023 9:01:44 AM...

CVE-2023-38035 – API Authentication Bypass on Sentry Administrator Interface

Last Modified Date Aug 23, 2026 11:52:15 PM...

The top 5 most routinely exploited vulnerabilities of 2021

A joint Cybersecurity Advisory, coauthored by cybersecurity authorities of the United States CISA, NSA, and FBI, Australia ACSC, Canada CCCS, New Zealand NZ NCSC, and the United Kingdom NCSC-UK has detailed the top 15 Common Vulnerabilities and Exposures CVEs routinely exploited by malicious cybe...

CVE-2020-10148 SolarWinds Orion API authentication bypass and RCE

The SolarWinds Orion API is vulnerable to an authentication bypass that could allow a remote attacker to execute API commands. This vulnerability could allow a remote attacker to bypass authentication and execute API commands which may result in a compromise of the SolarWinds instance. SolarWinds...