Advisory details:
gitlab / maven/io.netty/netty-codec-http2/CVE-2026-93568
| Advisory ID | gitlab/maven/io.netty/netty-codec-http2/CVE-2026-93568 |
| Aliases |
CVE-2026-93568
GHSA-w6j8-x45j-w75f |
| Summary | Improper Input Validation A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HTTP/1.1 CONNECT requests, leading to a loss of critical protocol and path information. This misinterpretation can allow attackers to bypass security policies, such as routing or authorization logic, in applications that rely on Netty for HTTP/2 or HTTP/3 communication, resulting in integrity loss. |
| 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-http2/CVE-2026-93568.yml |
| Reference id | Reference type | URL |
|---|---|---|
| CVE-2026-93568 | https://nvd.nist.gov/vuln/detail/CVE-2026-93568 | |
| GHSA-w6j8-x45j-w75f | https://github.com/netty/netty/security/advisories/GHSA-w6j8-x45j-w75f | |
| show_bug.cgi?id=2536961 | Bug | https://bugzilla.redhat.com/show_bug.cgi?id=2536961 |
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.