CVE-2021-31525
MEDIUM5.9EPSS 0.02%golang.org/x/net/http/httpguts vulnerable to Uncontrolled Recursion
Published: 5/24/2022Modified: 4/28/2026
Description
net/http in Go before 1.15.12 and 1.16.x before 1.16.4 allows remote attackers to cause a denial of service (panic) via a large header to ReadRequest or ReadResponse. Server, Transport, and Client can each be affected in some configurations.
Affected packages (6)
- Bitnami/golangfrom 0, < 1.15.12, >= 1.16.0, < 1.16.4
- Debian/golang-1.15from 0, < 1.15.9-2
- Debian/golang-golang-x-netfrom 0, < 1:0.0+git20210119.5f4716e+dfsg-3
- Go/golang.org/x/netfrom 0, < 0.0.0-20210428140749-89ef3d95e781
- Go/golang.org/x/netfrom 0, < 0.0.0-20210428140749-89ef3d95e781
- Go/stdlibfrom 0, < 1.15.12, >= 1.16.0-0, < 1.16.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (12)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-31525
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-31525
- PATCHhttps://github.com/golang/go
- WEBhttps://github.com/golang/go/issues/45710
- WEBhttps://go.dev/cl/313069
- WEBhttps://go.dev/issue/45710
- WEBhttps://go.googlesource.com/net/+/89ef3d95e781148a0951956029c92a211477f7f9
- WEBhttps://groups.google.com/g/golang-announce/c/cu9SP4eSXMc
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ISRZZ6NY5R2TBYE72KZFOCO25TEUQTBF/
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/ISRZZ6NY5R2TBYE72KZFOCO25TEUQTBF
- WEBhttps://pkg.go.dev/vuln/GO-2022-0236
- WEBhttps://security.gentoo.org/glsa/202208-02