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THREATINT
PUBLISHED

CVE-2025-22871

Request smuggling due to acceptance of invalid chunked data in net/http



Description

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.

Reserved 2025-01-08 | Published 2025-04-08 | Updated 2025-04-18 | Assigner Go

Problem types

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Product status

Default status
unaffected

Any version before 1.23.8
affected

1.24.0-0 before 1.24.2
affected

Credits

Jeppe Bonde Weikop

References

go.dev/cl/652998

go.dev/issue/71988

groups.google.com/g/golang-announce/c/Y2uBTVKjBQk

pkg.go.dev/vuln/GO-2025-3563

cve.org (CVE-2025-22871)

nvd.nist.gov (CVE-2025-22871)

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