CVE-2026-48980

The PAM module pam_usb is affected by a local-access vulnerability in earlier releases (pre-0.9.2) where getenv() in a PAM context returns attacker-controlled values for XRDP_SESSION, DISPLAY, and TMUX when the environment is manipulated by a local user. These values influence local-vs-remote ses...

CVE-2026-48986

pamusb provides hardware authentication for Linux using removable media. In pamusb 0.9.1 and earlier, usbgetprocessparentid can cause an infinite loop DoS because it does not initialize ppid on failure. In pusblocallogin, the same variable is reused as input and output in a process-tree while loo...

CVE-2026-48985

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, pusbisloginctllocal can cause a NULL dereference crash when parsing loginctl output. The function calls popen and reads the result; if the Remote field is only a newline, fgets succeeds...

CVE-2026-48985

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, pusbisloginctllocal can cause a NULL dereference crash when parsing loginctl output. The function calls popen and reads the result; if the Remote field is only a newline, fgets succeeds...

CVE-2026-48986

CVE-2026-48986 affects pam_usb (Linux hardware authentication with removable media). In versions up to 0.9.1, the usb_get_process_parent_id() routine can cause an infinite loop DoS because it does not initialize *ppid on failure. In pusb_local_login(), the same variable is reused in a process-tre...

CVE-2026-48986 pam_usb: Infinite loop DoS in process-tree walk when parent process exits during authentication

pamusb provides hardware authentication for Linux using removable media. In pamusb 0.9.1 and earlier, usbgetprocessparentid can cause an infinite loop DoS because it does not initialize ppid on failure. In pusblocallogin, the same variable is reused as input and output in a process-tree while loo...

CVE-2026-56022

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641...

CVE-2026-48984

pam_usb for Linux (affected: v0.9.1 and earlier) has a memory handling flaw where xfree() frees buffers without zeroing contents, potentially leaving sensitive data (including one-time pad bytes) in freed heap memory. On systems with use-after-free or heap inspection capabilities, this could perm...

CVE-2026-56020 Webmin HTTP header authentication bypass

The Webmin HTTP server miniserv.pl allows unauthenticated attackers to impersonate any user with a configured SSL client certificate by sending a forged HTTP header. A remote attacker can spoof certificate DNs and authenticate as any user. Fixed in 2.641...

EUVD-2026-37907

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641...

CVE-2026-56022 Webmin MFA bypass

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641...

CVE-2026-56022

CVE-2026-56022 affects Webmin. The issue allows bypass of MFA by using basic authentication without session cookies when the attacker supplies the header User-Agent: webmin, enabling MFA bypass. The vulnerability is mitigated in Webmin 2.641. "Fixed in 2.641" from the advisory. No exploit details...

GHSA-WCPR-6G7X-P44R googleapis/mcp-toolbox: authentication bypass vulnerability in the generic opaque token validation path (validateOpaqueToken)

An authentication bypass vulnerability exists in the generic opaque token validation path validateOpaqueToken of googleapis/mcp-toolbox. When the toolbox validates an opaque token via an OAuth 2.0 introspection endpoint RFC 7662, it decodes the response into an introspectResp struct. However, the...

GHSA-8FCC-W5HV-4GXV googleapis/mcp-toolbox: authentication bypass vulnerability in the generic opaque token validation path (validateOpaqueToken)

An authentication bypass vulnerability exists in the generic opaque token validation path validateOpaqueToken of googleapis/mcp-toolbox. When verifying an unparsed opaque token via an OAuth 2.0 introspection endpoint RFC 7662, the toolbox decodes the response into an introspectResp struct where t...

GHSA-W5CV-PW74-4RXC opentelemetry-collector-contrib: githubreceiver silently ignores configured required_headers authentication

githubreceiver Silently Ignores Configured requiredheaders Authentication Summary The githubreceiver webhook handler does not enforce the requiredheaders configuration. Headers are validated at startup config rejects empty keys/values but never checked on incoming requests. This follows the same...

EUVD-2026-37814

BBOT: Server-Side Request Forgery SSRF in dockerpull module via WWW-Authenticate realm parsing...

CVE-2026-11717

An authentication bypass vulnerability exists in the generic opaque token validation path validateOpaqueToken of googleapis/mcp-toolbox. When verifying an unparsed opaque token via an OAuth 2.0 introspection endpoint RFC 7662, the toolbox decodes the response into an introspectResp struct where t...

CVE-2026-11718

An authentication bypass vulnerability exists in the generic opaque token validation path validateOpaqueToken of googleapis/mcp-toolbox. When the toolbox validates an opaque token via an OAuth 2.0 introspection endpoint RFC 7662, it decodes the response into an introspectResp struct. However, the...

Azure Active Directory Elevation of Privilege Vulnerability

Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network...

M365 Copilot Information Disclosure Vulnerability

Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network...