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CVE-2026-93564

Medium priority
Needs evaluation

A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93558

Medium priority
Needs evaluation

A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93560

Medium priority
Needs evaluation

A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93492

Medium priority
Needs evaluation

A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAX_HEADER_TABLE_SIZE. This causes the HpackEncoder to store an excessive number of unique...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93491

Medium priority
Needs evaluation

A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93488

Medium priority
Needs evaluation

A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93578

Medium priority
Needs evaluation

A flaw was found in Netty's Online Certificate Status Protocol (OCSP) Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage (EKU) in OCSP responder certificates. A remote attacker, holding any valid...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93575

Medium priority
Needs evaluation

A flaw was found in Netty's MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the 'Properties Length' against...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93572

Medium priority
Needs evaluation

A flaw was found in Netty's `RedisArrayAggregator` component. A remote attacker can exploit this vulnerability by sending specially crafted nested Redis (RESP) array headers. This can cause the `RedisArrayAggregator` to eagerly...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-93563

Medium priority
Needs evaluation

A flaw was found in Netty's `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response...

1 affected package

netty

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
netty Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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