CVE-2025-22871

critical · 9.1

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.

9.1

CVSS

0.8%

EPSS (exploit prob.)

55th

EPSS percentile

2025-04-08

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://go.dev/cl/652998
https://go.dev/issue/71988
https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk
https://pkg.go.dev/vuln/GO-2025-3563
http://www.openwall.com/lists/oss-security/2025/04/04/4
https://cert-portal.siemens.com/productcert/html/ssa-783943.html

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-22871