CVE-2025-22871
Request smuggling due to acceptance of invalid chunked data in net/http
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.
| Vendor | go standard library |
| Product | net/http/internal |
| Published | Apr 8, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Go standard library / net/http/internal
0 < 1.23.8 1.24.0-0 < 1.24.2
References
go.dev: https://go.dev/cl/652998 go.dev: https://go.dev/issue/71988 groups.google.com: https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk pkg.go.dev: https://pkg.go.dev/vuln/GO-2025-3563 openwall.com: http://www.openwall.com/lists/oss-security/2025/04/04/4 cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-783943.html
Credits
Jeppe Bonde Weikop