CVE-2026-70367

CVE-2026-70367 affects stunnel

CVE-2026-70367

A Server-Side Request Forgery SSRF bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses e.g., “::ffff:127.0.0.1” or unspecified addresses "0.0.0.0", "::"...

CVE-2026-70367 Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services

A Server-Side Request Forgery SSRF bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses e.g., “::ffff:127.0.0.1” or unspecified addresses "0.0.0.0", "::"...

CVE-2026-70367 Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services

A Server-Side Request Forgery SSRF bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses e.g., “::ffff:127.0.0.1” or unspecified addresses "0.0.0.0", "::"...

CVE-2026-70367 Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services

A Server-Side Request Forgery SSRF bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses e.g., “::ffff:127.0.0.1” or unspecified addresses "0.0.0.0", "::"...

PYSEC-2026-3572 Flyto2 Core: Multiple HTTP-family modules fetch client-controlled URLs without the SSRF guard their siblings apply (SSRF to internal/metadata)

Summary Numerous HTTP-emitting modules core.api.httpget, core.api.httppost, graphql.query/graphql.mutation, monitor.httpcheck, communication.slacksend, notification.discord,slack,teams.sendmessage, ai.visionanalyze anthropic path, verify.visualdiff, browser.proxyrotate, and the agent/llm inline...

PYSEC-2026-3549 AWS API MCP Server Security Policy Bypass via Startup Initialization Failure

Summary The AWS API MCP Server is an open source Model Context Protocol MCP server that enables AI assistants to interact with AWS services and resources through AWS CLI commands. It provides programmatic access to manage your AWS infrastructure while maintaining proper security controls. It...

AWS CLI: Overly permissive File Permissions

SummaryThe AWS Command Line Interface AWS CLI is a unified tool for managing AWS services from the command line. Certain CLI subcommands wrote credential and configuration files with world-readable permissions on Unix-like systems with a default umask, allowing other local users on the same host ...

RHSA-2026:49840 Red Hat Security Advisory: sssd security update

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Server-side Request Forgery

LimeSurvey is vulnerable to Server-Side Request Forgery SSRF. The vulnerability is due to improper validation of the HTTP Host header in getTemplateData, allowing authenticated attackers to force the server to send requests to internal services or cloud metadata endpoints and potentially expose...

UBUNTU-CVE-2026-68744

A flaw was found in SSSD. The sssnssprotocolfillinitgr function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to...

CVE-2026-68744 Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply

A flaw was found in SSSD. The sssnssprotocolfillinitgr function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to...

CVE-2026-18569 Keycloak-services: keycloak-services: oidc backchannel logout accepts unsigned forged logout tokens

A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature...

CVE-2026-18569 Keycloak-services: keycloak-services: oidc backchannel logout accepts unsigned forged logout tokens

A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature...

CVE-2026-18569

The vulnerability CVE-2026-18569 affects the Red Hat Build of Keycloak, specifically the keycloak-services component’s backchannel logout endpoint. The root cause is when an OIDC identity provider is configured to skip signature validation, causing the system to accept logout requests with no cry...

sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation

A flaw was found in SSSD's LDAP sudo provider. When the ldapsudosearchbase option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo...

Important: Red Hat Security Advisory: sssd security update

An update for sssd is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass

A path traversal flaw was found in SSSD's AD GPO provider. The adgpoextractsmbcomponents function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL...

Important: Red Hat Security Advisory: sssd security update

An update for sssd is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

CVE-2026-67979

Incorrect access control in the Executive Services dynamic application start path component of NASA cFS v7.0.1 allows attackers to execute arbitrary code via placing a shared object on target storage...