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CVE-2026-49457

QUIC has Broken TLS verification

erlang_quic is a pure Erlang QUIC implementation. Prior to version 1.4.4, the QUIC client did not authenticate the server during the TLS 1.3 handshake. The CertificateVerify signature was not checked, the certificate chain was not validated, and the hostname was not compared against the certificate, so `verify` was effectively a no-op on the client. A man-in-the-middle on the network path could present any certificate and impersonate any server, defeating the confidentiality and integrity of the connection. HTTP/3 uses the same client and was equally affected. Handshakes authenticated by a PSK (session resumption) are not affected, because the peer is authenticated by the PSK binder and no certificate is sent. This is fixed in 1.4.4. The client now verifies the CertificateVerify signature, validates the certificate chain against the trust store (`cacerts` option, the operating system store by default), and checks the hostname. Client `verify` now defaults to on; set `verify => false` to accept any certificate (for example a self-signed test server). No known workarounds are available before 1.4.4. `verify => true` had no effect, and inspecting the certificate after connecting does not help because without the signature check the peer is never proven to own the certificate it presents.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-54481

Internal API HTTP client hardcodes InsecureSkipVerify:true with no config override (CWE-295)

Internal API HTTP client hardcodes InsecureSkipVerify:true with no config override (CWE-295)

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-53791

rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header

rsync daemon before 3.5.0 contains an IP address spoofing vulnerability that allows unauthenticated remote attackers to bypass IP-based access controls by sending a crafted PROXY protocol header with a forged source address. Attackers who can connect directly to the rsync daemon can inject a spoofed source IP in the PROXY protocol header to circumvent hosts allow/deny rules, gaining unauthorized access that would otherwise be blocked based on their real source address.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Products
CVE-2026-73840

OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook signature bypass)

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, the POST /api/v1alpha1/autobuild endpoint in internal/openchoreo-api/api/handlers/webhook_handler.go selected a webhook provider from caller-controlled X-Event-Key, accepted Bitbucket requests without HMAC-SHA256 in X-Hub-Signature or a configured bitbucket-secret, and allowed unauthenticated build triggers for components matched by repository URL and branch, including cross-provider triggers using attacker-supplied commit SHAs. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-70454

rsync < 3.5.0 TLS Certificate Validation Bypass via SSL/OpenSSL Mode

rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt or tamper with rsync session content without detection by the client.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed
Products
CVE-2026-67598

Emlog Pro 2.6.23 TLS Certificate Validation Disabled in ai.php

Emlog Pro through 2.6.23 contains a disabled TLS certificate validation vulnerability in include/service/ai.php that allows network-adjacent attackers to intercept outbound HTTPS requests to configured LLM providers by presenting arbitrary TLS certificates, as CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST are unconditionally disabled across sendStream(), sendImageRequest(), send(), and fetchSearchHtml() with no option to re-enable verification. Attackers can perform man-in-the-middle interception to extract Authorization Bearer API keys from every AI request and inject crafted AI responses that may be acted upon by the tool-call execution pipeline, including the query_database and update_config tool handlers.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-72816

go-chi chi before 5.3.0 IP Spoofing via RealIP Middleware

go-chi/chi through 5.2.1 contains an IP spoofing vulnerability in the RealIP middleware (middleware/realip.go). The realIP() function reads client-controlled headers (True-Client-IP, X-Real-IP, and X-Forwarded-For) and overwrites r.RemoteAddr without verifying that the request originated from a trusted proxy. Attackers can supply arbitrary IP addresses in these headers to bypass IP-based access controls, evade rate limiting and geo-IP restrictions, and pollute audit logs. Fixed in 5.3.0.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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Chi
CVE-2026-48437

CAI Content Credentials | Improper Certificate Validation (CWE-295)

CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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C2pa C2pa-web C2patool and 3 more
CVE-2026-44393

oslo.messaging: openstack: OpenStack oslo.messaging: Man-in-the-middle attack via improper TLS hostname verification

An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When ssl_ca_file is configured, the driver enables certificate chain validation but does not pass the expected broker hostname into the underlying TLS stack. Any certificate signed by the deployment CA is accepted regardless of hostname, allowing an attacker who can intercept control-plane traffic to impersonate the RabbitMQ broker and perform a man-in-the-middle attack on RPC and notification traffic. All OpenStack services using oslo.messaging with RabbitMQ over TLS are affected.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
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CVE-2026-16101

forced re-pairing with already bonded device

Spoofing an already bonded device can force either RS9116W or SiWx917 to re-pair/bond with a rogue device. See V1 in BLERP paper below

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-19291

Bluetooth re-pairing can use a lower security level than previous

Bluetooth re-pairing with an existing device can use a lower security level. RS9116W and SiWx91x impacted. See V3 in the BLERP paper linked below.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-6387

Local Privilege Escalation via Authentication Bypass in Lenovo System Update

A potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute arbitrary code with elevated privileges.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
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CVE-2026-17268

IBM i is Affected By Multiple Vulnerabilities in Navigator for i

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper validation of a session token.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
I
CVE-2026-18679

Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured

When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.

CVSS 4.0 · 5.8 Medium EPSS < 1% KEV · Not listed
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CVE-2026-18678

Kong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configured

When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and sends API tokens over the unverified connection. An attacker on the network path between the operator and the control plane can intercept user or admin API tokens and then act against the control plane as that user.

CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2026-18677

Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity

In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane presenting a tags-bound token can register with kuma.io/workload set to any value and obtain another workload's SPIFFE identity.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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CVE-2026-66154

Insufficient Certificate Validation Allowing Unauthorized Changes in SonicWall GMS

An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
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Products
Gms
CVE-2026-67558

Mira Hormone Monitor, Mira Android App Authentication bypass by spoofing

The Mira Android companion app v4.5.15.4 identifies the paired Mira hormone analyzer by performing a substring match against the BLE advertisement name only, with no cryptographic peripheral authentication, MAC allowlist, or bonded-identity check. An attacker could capture live session token information and inject forged hormone measurements into the victim's cloud record and clinical trend view.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
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