# CVE-2026-38969: ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.

CVE-2026-38969 is fixed in ruby-webrick on 1 platform by DEBIAN-CVE-2026-38969 (version 1.9.2-2), released July 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-38969
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: n/a
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 2, 2026
- Weakness: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-38969

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-webrick Debian 14 | 1.9.2-2 | [DEBIAN-CVE-2026-38969](https://patchblox.com/security/data/fix/linux/debian-cve-2026-38969.md) | Jul 8, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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