Rejected request-smuggling claim involving trailer Content-Length
Published Jul 2, 2026 · Updated Jul 2, 2026
WEBrick through 1.9.2 was reported to allow remote attackers to smuggle requests via a trailer Content-Length value. The report said lib/webrick/httprequest.rb merged chunked trailers into the canonical header map, exposing a trailer-supplied length to applications. MITRE withdrew the CVE after further investigation found no security issue, so no affected product, exploitable impact, or security gate remains under this record.
Summary
What happened
WEBrick through 1.9.2 was reported to allow remote attackers to smuggle requests via a trailer Content-Length value. The report said lib/webrick/httprequest.rb merged chunked trailers into the canonical header map, exposing a trailer-supplied length to applications. MITRE withdrew the CVE after further investigation found no security issue, so no affected product, exploitable impact, or security gate remains under this record.
The record
- CVE
- CVE-2026-38969
- Published
- Jul 2, 2026
- Updated
- Jul 2, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Jul 2, 2026CVE publishedPublication date reported by the CVE source.
- Jul 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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