Gazelle versions through 0.49 for Perl allows HTTP Request Smuggling via Improper Header Precedence.
Gazelle incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence.
An attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy.
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Affected Vendors & Products
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History
Wed, 06 May 2026 17:30:00 +0000
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| Description | Gazelle versions through 0.49 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Gazelle incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence. An attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy. | |
| Title | Gazelle versions through 0.49 for Perl allows HTTP Request Smuggling via Improper Header Precedence | |
| Weaknesses | CWE-444 | |
| References |
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Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-05-06T16:32:45.619Z
Reserved: 2026-04-14T11:35:53.644Z
Link: CVE-2026-40562
Updated: 2026-05-06T16:32:45.619Z
Status : Received
Published: 2026-05-06T13:16:09.110
Modified: 2026-05-06T17:16:23.147
Link: CVE-2026-40562
No data.
OpenCVE Enrichment
Updated: 2026-05-06T16:45:07Z