Início / CVEs
Base de CVEs
Vulnerabilidades publicadas, com severidade, exploração conhecida e fontes oficiais.
CVE-2026-82157
Alta · 8.3
CWE-295 24/09/2026
Improper Certificate Validation em Dell ThinOS 10
Dell ThinOS 10, versions prior to SecurityAddon_2605.10.2766_T10, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Protection mechanism bypass and Unauthorized access.
CVE-2026-77707
Média · 5.9
CWE-295 24/09/2026
TLS Certificate Validation Disabled for Keycloak Connections in HAVELSAN's Liman Render Engine
Improper certificate validation vulnerability in HAVELSAN Inc. Liman Render Engine allows Adversary in the Middle (AiTM).
This issue affects Liman Render Engine: from 1.0 before 1.2-75.
CVE-2026-67404
Crítica · 9.2
CWE-295 23/09/2026
RabbitMQ: OAuth2 silent verify_none fallback for JWKS fetch
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, When no CA bundle is available, ssl_options/1 falls back to [{verify, verify_none}] with no warning. An attacker in a man-in-the-middle position can forge the JWKS response, which leads the broker to accept arbitrary JWTs. Preconditions include The OAuth2 plugin must be in use with no cacertfile configured and the OS CA bundle empty or unreadable (for example, in a minimal container), and the attacker must hold a network man-in-the-middle position.. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.
CVE-2026-67231
Crítica · 9.1
CWE-295 23/09/2026
RabbitMQ: Trust-store whitelist by Issuer+Serial only
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, The trust-store plugin installs a verify_fun that overrides {bad_cert, unknown_ca} / {bad_cert, selfsigned_peer} when the presented cert "matches" a whitelisted one. The match key is extract_issuer_id/1 → public_key:pkix_issuer_id/2 → {IssuerName, SerialNumber} , both fields are taken verbatim from the presented certificate body and contain no public-key, SKI, fingerprint or signature material. is_whitelisted/1 is a pure ets:member lookup; the stored full DER is used only for list/0 display and is never compared against the presented cert. cacerts is [], so the whitelisted cert is never used as a trust anchor for path validation either. TLS client-authentication bypass: an attacker who knows the issuer DN + serial of any whitelisted certificate can connect with a forged self-signed cert. Preconditions include rabbitmq_trust_store plugin enabled and used as the TLS verify_fun Attacker knows or can guess the {Issuer, Serial} of at least one whitelisted cert (non-secret; exposed via CLI/logs/any cert copy). This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.
CVE-2026-73587
Média · 6.8
CWE-295 23/09/2026
Improper Certificate Validation em Dell Policy Manager For Secure Connect Gateway
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Information disclosure, Information tampering, and Protection mechanism bypass.
CVE-2026-91812
Alta · 8.1
CWE-295 23/09/2026
Foxit PDF Editor/Reader FoxitUpdater Improper Certificate Validation Local Privilege Escalation Vulnerability
A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
CVE-2026-18173
Baixa · 3.7
CWE-295 22/09/2026
IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to obtain sensitive information due to improper enforcement of mutual TLS authentication.
CVE-2026-83964
Alta · 7.5
CWE-295 22/09/2026
Adobe Connect | Improper Certificate Validation (CWE-295)
Adobe Connect is affected by an Improper Certificate Validation vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue does not require user interaction.
CVE-2026-63374
Crítica · 9.3
CWE-295 22/09/2026
AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing
AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connect_tcp() and TLSStream.wrap() can validate internationalized host names after the standard library converts them with IDNA 2003 instead of IDNA 2008. When a connection to a non-ASCII domain is hijacked or redirected, an attacker can obtain a legitimate certificate for the different ASCII hostname produced by IDNA 2003 and present it to the client, causing the malicious endpoint's certificate to validate. This issue is fixed in version 4.14.2.
CVE-2026-65129
Alta · 8.3
CWE-295 22/09/2026
Improper Certificate Validation em NVIDIA Infra Controller
NVIDIA Infrastructure Controller for Linux contains a vulnerability where an attacker could cause improper certificate validation. A successful exploit of this vulnerability might lead to information disclosure, data tampering, and denial of service.
CVE-2026-65118
Crítica · 9.8
CWE-295 22/09/2026
Improper Certificate Validation em NVIDIA Infra Controller
NVIDIA Infrastructure Controller for Linux contains a vulnerability where an attacker could cause improper certificate validation. A successful exploit of this vulnerability might lead to information disclosure, data tampering, and denial of service.
CVE-2026-84081
Alta · 8.1
CWE-295 18/09/2026
IBM Guardium Data Protection is affected by multiple vulnerabilities.
IBM Guardium Data Protection 12.2 could allow a remote attacker to bypass security restrictions due to improper certificate validation.
CVE-2026-84975
Alta · 7.4
CWE-295 18/09/2026
PJSIP: TLS server identity (hostname) verification bypass via embedded NUL in certificate SubjectAltName (OpenSSL and GnuTLS backends)
PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/ssl_sock_ossl.c and pjlib/src/pj/ssl_sock_gtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an embedded NUL byte. With server verification enabled through --tls-verify-server for the PJSIP TLS/SIPS transport, a certificate containing a DNS SubjectAltName formed from the target hostname prefix followed by an embedded NUL and an attacker-controlled suffix can therefore be accepted for the prefix hostname. An attacker who possesses such a certificate from a trusted issuer and can intercept the connection can impersonate the target server, complete the SIP session, and receive REGISTER credentials. The mbedTLS backend is not affected because it preserves the explicit string length. No fixed version is available as of this review.
CVE-2026-93601
Baixa · 2.2
CWE-295 18/09/2026
rustls webpki 0.101.0 before 0.103.12 Name Constraint Bypass
rustls-webpki (the Rust webpki fork used by rustls) versions >= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.
CVE-2026-93600
Baixa · 2.2
CWE-295 18/09/2026
rustls webpki Name Constraints URI Validation Bypass
rustls-webpki (rustls/webpki) versions 0.101.0 through 0.103.11 and 0.104.0-alpha releases before 0.104.0-alpha.6 ignore X.509 name constraints that apply to URI names, causing such constraints to be accepted rather than enforced. Because name constraints are restrictions on otherwise properly issued certificates, the flaw is only reachable after successful signature verification and requires a misissued certificate to exploit; the library also provides no API for asserting URI names, and URI name constraints are otherwise unimplemented. Versions 0.103.12 and 0.104.0-alpha.6 reject URI name constraints unconditionally.
CVE-2026-40539
Alta · 7.1
CWE-295 18/09/2026
Improper Certificate Validation em Synology DiskStation Manager (DSM)
An improper certificate validation vulnerability in Email API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows man-in-the-middle attackers to read or write arbitrary files and conduct denial-of-service attacks.
CVE-2026-81447
Média · 6.8
CWE-295 17/09/2026
Improper Certificate Validation em Dell Openmanage Server Administrator
Dell OpenManage Server Administrator, versions prior to 11.1.0.3, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Information disclosure and Information tampering.
CVE-2026-81871
Média · 6.3
CWE-295 16/09/2026
OpenTelemetry-Go: Log gRPC exporter ignores env TLS certs, bypassing mTLS/pinning
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.21.0, the exporters/otlp/otlplog/otlploggrpc package loads OTEL_EXPORTER_OTLP_LOGS_CERTIFICATE, OTEL_EXPORTER_OTLP_CERTIFICATE, and related client certificate environment variables through loadEnvTLS into cfg.tlsCfg, but newGRPCDialOptions does not apply cfg.tlsCfg when creating gRPC transport credentials. The environment-only TLS path instead uses credentials.NewTLS with system roots and no configured client certificate, bypassing intended private CA pinning and mutual TLS unless the application also supplies WithTLSCredentials. A network attacker able to intercept or spoof the collector connection with a system-trusted certificate can read or alter log telemetry. This issue is fixed in version 0.21.0.
CVE-2026-20323
Alta · 8.3
CWE-295 16/09/2026
Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability
A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure FMC Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to impersonate the peer device and obtain access at the level of the manager role, which is equivalent to root.
This vulnerability is due to improper management of the TLS certificate for the sftunnel management connection. An attacker could exploit this vulnerability by connecting to the sftunnel port using a crafted TLS certificate. A successful exploit could allow the attacker to become a registered sftunnel peer with root access.
Note: The attack is successful only if the sftunnel connection is down or the attack can disrupt the sftunnel connection long enough to execute the attack.
CVE-2026-86474
Alta · 7.7
CWE-295 16/09/2026
Improper Certificate Validation in the Firmware Download vulnerability
The lack of TLS certificate validation when downloading firmware updates in VEO and VEO-XS Wi-Fi monitors, in versions prior to 01.48.001, allows an attacker to perform man-in-the-middle attacks on the update channel.
CVE-2026-13327
Alta · 8.3
CWE-295 15/09/2026
Improper Certificate Validation em Devolutions Devolutions Server
Improper certificate validation on LDAPS connections to Active Directory in Devolutions Server 2026.2.16 and earlier allows a network-positioned attacker to intercept privileged directory service credentials via a spoofed domain controller certificate.
CVE-2026-84850
Média · 4.8
CWE-295 15/09/2026
Improper Certificate Validation em Devolutions Devolutions Server
Improper certificate validation in the shared HTTP client used by synchronization and integration features in Devolutions Server 2026.2.16 and earlier allows a network-positioned attacker to intercept and tamper with outbound TLS connections via a spoofed or self-signed certificate.
CVE-2026-61668
Alta · 8.1
CWE-295 15/09/2026
DIRAC: Pilot code downloaded over unverified HTTPS connection
DIRAC is an interware, meaning a software framework for distributed computing. Prior to versions 8.0.79, 9.0.22, and 9.1.10, WorkloadManagementSystem/Utilities/PilotWrapper.py pilotWrapperScript uses ssl._create_unverified_context to download the second-stage pilot.tar archive without TLS certificate verification and downloads the reference checksum through the same unvalidated channel. An attacker able to redirect or intercept a grid site's network traffic through DNS or routing manipulation can substitute both the executable pilot code and its checksum, causing arbitrary code to run in the pilot context with access to pilot proxy credentials. The fixed implementation validates the server certificate through system trust and X509_CERT_DIR or the grid certificate directory. This issue is fixed in versions 8.0.79, 9.0.22, and 9.1.10.
CVE-2026-52724
Média · 5.8
CWE-295 15/09/2026
kuma-dp connects to control plane without verifying TLS certificate when no CA is configured
Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, Universal mode kuma-dp connections to an HTTPS control plane disable TLS peer verification when --ca-cert-file is not supplied and KUMA_CONTROL_PLANE_CA_CERT is unset. The dataplane authentication token is sent over the unverified connection, allowing an on-path attacker to intercept the token, impersonate the control plane, inject a forged bootstrap configuration, and take over the proxy. Standard Kubernetes installations created by kumactl install control-plane or the official Helm chart are unaffected because the mutating admission webhook injects KUMA_CONTROL_PLANE_CA_CERT into each sidecar. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.
CVE-2026-50166
Média · 5.5
CWE-295 15/09/2026
Kuma: kumactl connects to control plane without verifying TLS certificate when no CA is configured
Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, a kumactl profile manually configured for an HTTPS control plane without --ca-cert-file disables TLS peer verification and sends API tokens over the unverified connection. An attacker on the network path can intercept user or administrator API tokens and act against the control plane as the compromised user. The default local profile is unaffected because it uses plain HTTP. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.