CVE Vulnerability Catalog

The vulnerability affects the broker-side PushTelemetry API (KIP-714) in Apache Kafka, which validates only the compressed size of a client's metrics payload against telemetry.max.bytes before decompressing it without any limit on the decompressed output size. A small, highly compressible payload can expand to hundreds of megabytes of broker heap, causing an OutOfMemoryError.

In an Apache Kafka broker using SASL/OAUTHBEARER with the default validator (DefaultJwtValidator), when sasl.oauthbearer.jwks.endpoint.url is unset and no custom verification key resolver is supplied, the validator silently falls back to ClientJwtValidator, which does not verify the JWT signature, algorithm, or issuer. The broker starts without any warning and accepts any structurally valid JWT, including "alg":"none" tokens. This is the residual of CVE-2026-33557, whose fix restored signature verification only on the path where the JWKS endpoint URL is set.

An Apache Kafka broker authenticating clients via SASL/OAUTHBEARER with the bundled JWKS-backed validator always verifies the JWT signature, but does not enforce the issuer (iss) or audience (aud) claims unless sasl.oauthbearer.expected.issuer and sasl.oauthbearer.expected.audience are explicitly configured. As a result, a validly signed token from a different issuer or lacking an aud claim may be accepted. Exposure mainly affects deployments whose JWKS endpoint serves signing keys for multiple issuers or shared signing keys.

An OS Command Injection vulnerability in AccessManager of Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with config-write privileges to execute arbitrary commands as root in the YANG configuration. The flaw results from improper neutralization of special elements used in OS commands.

An authenticated user in Grafana can read SSO client secrets and modify instance-wide SSO settings without the required permissions due to missing authorization. This affects Grafana OSS and Enterprise 13.2 installations with the experimental kubernetesSsoSettingsApi feature toggle enabled, which is disabled by default.

An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.

An Integer Overflow vulnerability in the DPI certificate scanner in Juniper Networks Session Smart Router allows an unauthenticated remote attacker to cause a denial of service via a specially crafted TLS server certificate.

A missing authentication for a critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. The vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor; it can no longer be exploited once the device is onboarded.

A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achieve remote code execution via a malicious DHCP reply.

An Improper Limitation of a Pathname to a Restricted Directory vulnerability in ConfigDirector in Juniper Networks Session Smart Router and Session Smart Conductor allows an authenticated REST user to read, overwrite, or delete arbitrary certificate and key files on the host filesystem via the certificate and private-key REST API.

An improper neutralization of special elements used in an OS command vulnerability in the AutomatedProvisioner in Juniper Networks Session Smart Conductor allows a remote attacker to execute arbitrary commands as root via a specially crafted salt minion ID.

An injection vulnerability in the web server of Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters.

An incorrect permission assignment for a critical resource in RoutingManager of Juniper Networks Session Smart Conductor allows a local user to access sensitive routing credentials by triggering processes that write to the /tmp directory.

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to perform arbitrary file deletion and arbitrary command execution via the deletion of an audit rule.

An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with write access to the model cache directory to execute arbitrary code and escalate privileges via the processing of unverified cache files.

An Improper Link Resolution Before File Access ('Link Following') vulnerability in the unauthenticated web server handlers in Juniper Networks Session Smart Router and Session Smart Conductor allows a local unprivileged user to overwrite arbitrary files as root via unauthenticated API endpoints. This vulnerability can be exploited on Mist-managed routers and on unmanaged Routers that have not yet been onboarded to a Conductor. Routers already managed by Conductor are not affected.

An injection vulnerability in the ember service of Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with local access to unmount arbitrary filesystems or cause a denial of service via the creation of specially named directories and a service restart.

An Improper Initialization vulnerability in the SSR software in Juniper Networks Session Smart Router allows an attacker to decrypt traffic or cause a denial of service. Exploitation occurs via security policy assignment.

An out-of-bounds read vulnerability in the VRRP implementation of Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.

An out-of-bounds write vulnerability in TCP header processing of Juniper Networks Session Smart Router allows an attacker to corrupt TCP payload data and potentially cause session desynchronization via a transit TCP packet with an oversized SACK option length.