Advisory details:
vulnrichment / CVE-2026-33870
| Advisory ID | vulnrichment/CVE-2026-33870 |
| Aliases | |
| Summary | Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue. |
| 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 | 7.5 | |
| ssvc | Track |
| Reference id | Reference type | URL |
|---|---|---|
| https://w4ke.info/2025/06/18/funky-chunks.html | ||
| funky-chunks-2.html | Other | https://w4ke.info/2025/10/29/funky-chunks-2.html |
| GHSA-pwqr-wmgm-9rr8 | Other | https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8 |
| rfc9110 | Other | https://www.rfc-editor.org/rfc/rfc9110 |
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 |
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-31T13:55:28Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/33xxx/CVE-2026-33870.json
Source Advisory: vulnrichment/CVE-2026-33870
[{'Exploitation': 'poc'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]