A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass `Transfer-Encoding` header validation by splitting the `Transfer-Encoding` field across multiple headers, with the last field containing a non-final transfer coding like `gzip` or `deflate`. This bypass can lead to HTTP request smuggling, enabling attackers to bypass security controls, desynchronize request processing, or cause requests to be processed in an unintended context.
References
Configurations
No configuration.
History
15 Oct 2026, 17:17
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22 Sep 2026, 23:17
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21 Sep 2026, 18:17
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18 Sep 2026, 21:18
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| Summary | (en) A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass `Transfer-Encoding` header validation by splitting the `Transfer-Encoding` field across multiple headers, with the last field containing a non-final transfer coding like `gzip` or `deflate`. This bypass can lead to HTTP request smuggling, enabling attackers to bypass security controls, desynchronize request processing, or cause requests to be processed in an unintended context. |
18 Sep 2026, 15:17
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| New CVE |
Information
Published : 2026-09-18 15:17
Updated : 2026-10-15 17:17
NVD link : CVE-2026-93573
Mitre link : CVE-2026-93573
CVE.ORG link : CVE-2026-93573
JSON object : View
Products Affected
No product.
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
