Advisory details:
gitlab / maven/io.netty/netty-codec-http/CVE-2026-93558
| Advisory ID | gitlab/maven/io.netty/netty-codec-http/CVE-2026-93558 |
| Aliases |
CVE-2026-93558
GHSA-2g37-3h88-55hc |
| Summary | Uncontrolled Resource Consumption 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 unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/io.netty/netty-codec-http/CVE-2026-93558.yml |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/netty/netty/security/advisories/GHSA-2g37-3h88-55hc | ||
| CVE-2026-93558 | https://nvd.nist.gov/vuln/detail/CVE-2026-93558 | |
| show_bug.cgi?id=2536932 | Bug | https://bugzilla.redhat.com/show_bug.cgi?id=2536932 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.