Description
ReverseProxy can forward queries containing parameters not visible to Rewrite functions. When used with a Rewrite function, or a Director function which parses query parameters, ReverseProxy sanitizes the forwarded request to remove query parameters which are not parsed by url.ParseQuery. ReverseProxy does not take ParseQuery's limit on the total number of query parameters (controlled by GODEBUG=urlmaxqueryparams=N) into account. This can permit ReverseProxy to forward a request containing a query parameter that is not visible to the Rewrite function. For example, the query "a1=x&a2=x&...&a10000=x&hidden=y" can forward the parameter "hidden=y" while hiding it from the proxy's Rewrite function.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Go standard library | net/http/httputil | < 1.25.10, 1.26.0-0 – < 1.26.3 | 1.25.10 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-1.26 | 1.26.3-1 | — |
| Debian 13 | golang-1.24 | No fix yet | — |
| Debian 12 | golang-1.19 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | golang-1.23 +2 | No fix yet | — |
| Ubuntu 25.10 | golang-1.23 +2 | No fix yet | — |
| Ubuntu 24.04 LTS | golang-1.21 +4 | No fix yet | — |
| Ubuntu 22.04 LTS | golang-1.17 +7 | No fix yet | — |
| Ubuntu 20.04 LTS | golang-1.13 +5 | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | golang-1.8 +2 | No fix yet | — |
| Ubuntu 16.04 LTS | golang-1.6 +1 | No fix yet | — |
| Ubuntu 14.04 LTS | golang-1.10 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | golang-1.13 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | golang-1.16 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | golang-1.13 +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | golang-1.13 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | golang +7 | 1.26.3-4.el10_2 | RHSA-2026:22120 |
| RHEL 9 | golang +7 | 1.26.3-1.el9_8 | RHSA-2026:22121 |
| RHEL 8 | delve | 1.25.2-1.module+el8.10.0+23746+9db33b5e | RHSA-2026:22112 |
| RHEL 8 | golang +7 | 1.25.10-1.module+el8.10.0+24308+5c4a16b7 | RHSA-2026:22112 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | golang +7 | 1.26.5-1.el10_0 | RHSA-2026:49702 |
| RHEL 9.6 EUS | golang +7 | 1.26.5-1.el9_6 | RHSA-2026:49712 |
| RHEL 9.4 E4S | golang +7 | 1.26.5-1.el9_4 | RHSA-2026:57649 |
| RHEL 9.2 E4S | golang +7 | 1.26.5-1.el9_2 | RHSA-2026:61253 |
| Red Hat Hardened Images 1 | golang1.25 +5 | 1.25.11-2.hum1 | RHSA-2026:23262 |
| Red Hat Hardened Images 1 | golang1.26 +5 | 1.26.4-2.hum1 | RHSA-2026:23264 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | golang +7 | 1.26.3-1.el9_8 | ALSA-2026:22121 |
| AlmaLinux 8 | delve | 1.25.2-1.module_el8.10.0+4074+24330916 | ALSA-2026:22112 |
| AlmaLinux 8 | golang +7 | 1.25.10-1.module_el8.10.0+4187+c45165c4 | ALSA-2026:22112 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | golang | 1.26.3-4.el10_2 | RLSA-2026:22120 |
| Rocky Linux 9 | golang | 1.26.3-1.el9_8 | RLSA-2026:22121 |
| Rocky Linux 8 | delve | 1.25.2-1.module+el8.10.0+40035+ee0a7047 | RLSA-2026:22112 |
| Rocky Linux 8 | golang | 1.25.10-1.module+el8.10.0+40200+0fd0f175 | RLSA-2026:22112 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | go1.25-openssl | 1.25.12-160000.1.1 | SUSE-SU-2026:22638-1 |
| SLES for SAP 16.0 | go1.26-openssl | 1.26.4-160000.1.1 | SUSE-SU-2026:22572-1 |
| SLES 16.0 | go1.25-openssl | 1.25.12-160000.1.1 | SUSE-SU-2026:22638-1 |
| SLES 16.0 | go1.26-openssl | 1.26.4-160000.1.1 | SUSE-SU-2026:22572-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | go1.25 | 1.25.10-1.1 | openSUSE-SU-2026:10723-1 |
| openSUSE Tumbleweed | go1.26 | 1.26.3-1.1 | openSUSE-SU-2026:10741-1 |
| openSUSE Leap 16.0 | go1.25-openssl | 1.25.12-160000.1.1 | openSUSE-SU-2026:21319-1 |
| openSUSE Leap 16.0 | go1.26-openssl | 1.26.4-160000.1.1 | openSUSE-SU-2026:21254-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | go | 1.26.3-r0 | — |
| Alpine v3.24 | rclone | 1.74.1-r0 | — |
| Alpine v3.23 | go | 1.25.10-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | amazon-cloudwatch-agent | 1.300066.2-2.amzn2023 | ALAS2023-2026-1747 |
| Amazon Linux 2023 | amazon-ecr-credential-helper | 0.12.0-3.amzn2023 | ALAS2023-2026-1738 |
| Amazon Linux 2023 | containerd +1 | 2.2.3-1.amzn2023.0.2 | ALAS2023-2026-1737 |
| Amazon Linux 2023 | credentials-fetcher | 2.0.1-1.amzn2023.0.5 | ALAS2023-2026-1744 |
| Amazon Linux 2023 | docker | 25.0.14-1.amzn2023.0.6 | ALAS2023-2026-1736 |
| Amazon Linux 2023 | ecs-init | 1.103.2-1.amzn2023 | ALAS2023-2026-1771 |
| Amazon Linux 2023 | golang +6 | 1.25.10-1.amzn2023.0.1 | ALAS2023-2026-1743 |
| Amazon Linux 2023 | golang-github-burntsushi-toml +1 | 1.5.0-1.amzn2023.0.1 | ALAS2023-2026-1751 |
| Amazon Linux 2023 | golang-github-burntsushi-toml-test +1 | 0.2.0-8.amzn2023.0.3 | ALAS2023-2026-1750 |
| Amazon Linux 2023 | golang-github-cpuguy83-md2man +2 | 2.0.2-24.amzn2023.0.7 | ALAS2023-2026-1749 |
| Amazon Linux 2023 | golist | 0.10.4-12.amzn2023.0.9 | ALAS2023-2026-1742 |
| Amazon Linux 2023 | nerdctl | 2.2.2-1.amzn2023.0.2 | ALAS2023-2026-1735 |
| Amazon Linux 2023 | oci-add-hooks | 0-0.1.20200504git268e3bb.amzn2023.0.11 | ALAS2023-2026-1739 |
| Amazon Linux 2023 | runc | 1.3.4-5.amzn2023.0.2 | ALAS2023-2026-1715 |
| Amazon Linux 2023 | runfinch-finch | 1.17.0-1.amzn2023.0.2 | ALAS2023-2026-1741 |
| Amazon Linux 2023 | soci-snapshotter | 0.13.0-1.amzn2023.0.3 | ALAS2023-2026-1740 |
| Amazon Linux 2 | amazon-cloudwatch-agent | 1.300066.2-2.amzn2 | ALAS2-2026-3323 |
| Amazon Linux 2 | golang +6 | 1.25.10-1.amzn2.0.1 | ALAS2-2026-3313 |
| Amazon Linux 2 | golist | 0.10.1-10.amzn2.0.13 | ALAS2-2026-3308 |
| Amazon Linux 2 | nerdctl | 2.2.2-1.amzn2.0.2 | ALAS2-2026-3319 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | golang | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | golang +7 | 1.26.5-1.0.1.el10_2 | ELSA-2026-22120 |
| Oracle Linux 9 | golang +7 | 1.26.3-1.0.1.el9_8 | ELSA-2026-22121 |
| Oracle Linux 8 | delve | 1.25.2-1.0.1.module+el8.10.0+90715+2d4d8dfd | ELSA-2026-22112 |
| Oracle Linux 8 | golang +7 | 1.25.9-1.0.1.module+el8.10.0+90898+1e3c34bb | ELSA-2026-22112 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | aactl | 0.4.12-r50 | — |
| Wolfi rolling | amazon-cloudwatch-agent | 1.300067.0-r2 | — |
| Wolfi rolling | amazon-k8s-cni | 1.21.1-r6 | — |
| Wolfi rolling | argo-cd-3.3-compat | 3.3.9-r2 | — |
| Wolfi rolling | aws-flb-cloudwatch | 1.9.5-r1 | — |
| Wolfi rolling | aws-flb-firehose | 1.7.3-r1 | — |
| Wolfi rolling | aws-flb-kinesis | 1.10.4-r1 | — |
| Wolfi rolling | aws-otel-collector | 0.47.0-r12 | — |
| Wolfi rolling | cert-manager-1.20 +5 | 1.20.2-r3 | — |
| Wolfi rolling | cilium-cli | 0.19.2-r11 | — |
| Wolfi rolling | cni-plugins +3 | 1.9.1-r4 | — |
| Wolfi rolling | cni-plugins-main | 1.9.1-r3 | — |
| Wolfi rolling | coredns-1.13 +1 | 1.13.2-r5 | — |
| Wolfi rolling | ctr-1 +3 | 1.7.31-r2 | — |
| Wolfi rolling | dask-gateway-server | 2026.3.0-r4 | — |
| Wolfi rolling | datadog-agent-7.72 +1 | 7.72.4-r22 | — |
| Wolfi rolling | datadog-agent-7.73-full +1 | 7.73.3-r13 | — |
| Wolfi rolling | dockerd-29 | 29.4.3-r0 | — |
| Wolfi rolling | dogstatsd-7.72 +1 | 7.72.4-r21 | — |
| Wolfi rolling | dogstatsd-7.73 +1 | 7.73.3-r12 | — |
| Wolfi rolling | falco-no-driver | 0.44.0-r0 | — |
| Wolfi rolling | fluent-bit-plugin-loki | 3.7.1-r5 | — |
| Wolfi rolling | flux-2.7 | 2.7.5-r16 | — |
| Wolfi rolling | gitaly-18.11 | 18.11.2-r1 | — |
| Wolfi rolling | go-1.24 | 1.24.13-r0 | — |
| Wolfi rolling | go-1.24-nm +5 | No fix yet | — |
| Wolfi rolling | go-1.26 | 1.26.3-r0 | — |
| Wolfi rolling | gosh | 0.0.47-r0 | — |
| Wolfi rolling | gpu-feature-discovery | 0.19.1-r1 | — |
| Wolfi rolling | grafana-12.3 | 12.3.6.01-r5 | — |
| Wolfi rolling | grafana-12.4 | 12.4.2-r11 | — |
| Wolfi rolling | grafana-13.0 | 13.0.1-r3 | — |
| Wolfi rolling | grafana-alloy | 1.15.1-r5 | — |
| Wolfi rolling | grafana-mimir-3.0-query-tee-3.0 | 3.0.6-r2 | — |
| Wolfi rolling | harbor-2.14 | 2.14.3-r16 | — |
| Wolfi rolling | helm-3 | 3.20.2-r0 | — |
| Wolfi rolling | hubble | 1.19.3-r2 | — |
| Wolfi rolling | juicefs-1.3 | 1.3.1-r14 | — |
| Wolfi rolling | k3d | 5.8.3-r33 | — |
| Wolfi rolling | k3s +1 | 1.35.3.1-r7 | — |
| Wolfi rolling | k3s-1.32 +1 | 1.32.13.1-r16 | — |
| Wolfi rolling | k3s-1.35 +2 | 1.35.3.1-r5 | — |
| Wolfi rolling | k3s-multicall-1.34 | 1.34.6.1-r6 | — |
| Wolfi rolling | k3s-static | 1.35.3.1-r8 | — |
| Wolfi rolling | k3s-static-1.32 | 1.32.13.1-r15 | — |
| Wolfi rolling | kaf | 0.2.14-r3 | — |
| Wolfi rolling | karma | 0.129-r3 | — |
| Wolfi rolling | knative-serving-1.21-activator | 1.21.3-r7 | — |
| Wolfi rolling | kots | 1.130.2-r1 | — |
| Wolfi rolling | kube-fluentd-operator | 1.18.2-r63 | — |
| Wolfi rolling | kube-proxy-1.35 +1 | 1.35.4-r4 | — |
| Wolfi rolling | kube-proxy-1.36 +1 | 1.36.0-r0 | — |
| Wolfi rolling | kubeadm-1.34 +3 | 1.34.7-r1 | — |
| Wolfi rolling | kubeadm-1.35 +5 | 1.35.4-r3 | — |
| Wolfi rolling | kubeadm-1.36 +5 | 1.36.0-r1 | — |
| Wolfi rolling | kubectl-1.32 | 1.32.13-r1 | — |
| Wolfi rolling | kubectl-1.33 | 1.33.11-r1 | — |
| Wolfi rolling | kubectl-1.34 +3 | 1.34.7-r2 | — |
| Wolfi rolling | kubectl-bash-completion-1.35 +3 | 1.35.8-r6 | — |
| Wolfi rolling | kubernetes-dashboard | 7.14.0-r6 | — |
| Wolfi rolling | kubevela-vela-cli +1 | 1.10.8-r5 | — |
| Wolfi rolling | kubo | 0.41.0-r1 | — |
| Wolfi rolling | kyverno-1.17 +1 | 1.17.2-r35 | — |
| Wolfi rolling | libnvidia-container | 1.19.0-r1 | — |
| Wolfi rolling | mattermost-11.1 | 11.1.3-r2 | — |
| Wolfi rolling | minio | 0.20260504.002721-r1 | — |
| Wolfi rolling | nerdctl | 2.2.2-r5 | — |
| Wolfi rolling | nvidia-device-plugin | 0.19.1-r0 | — |
| Wolfi rolling | prometheus-3.10 | 3.10.0-r6 | — |
| Wolfi rolling | prometheus-3.11 | 3.11.3-r0 | — |
| Wolfi rolling | prometheus-3.8 | 3.8.1-r4 | — |
| Wolfi rolling | prometheus-3.9 | 3.9.1-r4 | — |
| Wolfi rolling | prometheus-config-reloader | 0.91.0-r0 | — |
| Wolfi rolling | prometheus-operator +1 | 0.91.0-r1 | — |
| Wolfi rolling | redka | 1.0.1-r1 | — |
| Wolfi rolling | runc | 1.4.2-r2 | — |
| Wolfi rolling | spqr | 2.9.0-r7 | — |
| Wolfi rolling | teleport-18.6 | 18.6.8-r13 | — |
| Wolfi rolling | trino | 480-r15 | — |
| Wolfi rolling | tw | 0.0.47-r1 | — |
| Wolfi rolling | victoriametrics | 1.143.0-r0 | — |
| Wolfi rolling | victoriametrics-vmselect-cluster | 1.142.0-r2 | — |
| Wolfi rolling | vitess-23 | 23.0.4-r0 | — |
| Wolfi rolling | vitess-23-binaries | 23.0.4-r1 | — |
| Wolfi rolling | zarf | 0.75.1-r0 | — |
| Wolfi rolling | zot | 2.1.16-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | stdlib | < 1.25.10 · >= 1.26.0-0, < 1.26.3 | 1.25.10, 1.26.3 | GO-2026-4976 |
Advisories 47
- WID-SEC-2026-2455 Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- WID-SEC-2026-1437 Golang Go: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- WID-SEC-2026-3046 IBM Concert: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- ALSA-2026:22121 Important: golang security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:22112 Important: go-toolset:rhel8 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:61253 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:57649 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:49712 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:49702 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:23264 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:23262 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:22120 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:22121 Red Hat Security Advisory: golang security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:22112 Red Hat Security Advisory: go-toolset:rhel8 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RLSA-2026:22112 Important: go-toolset:rhel8 security update Rocky Linux Security Advisories · Aug 26, 2026
- RLSA-2026:22120 Important: golang security update Rocky Linux Security Advisories · Aug 26, 2026
- RLSA-2026:22121 Important: golang security update Rocky Linux Security Advisories · Aug 26, 2026
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- ELSA-2026-22120 Important: golang security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 21, 2026
- SUSE-SU-2026:22638-1 Security update for go1.25-openssl SUSE / openSUSE Security Updates · Jul 17, 2026
- openSUSE-SU-2026:21319-1 Security update for go1.25-openssl SUSE / openSUSE Security Updates · Jul 15, 2026
- SUSE-SU-2026:22572-1 Security update for go1.26-openssl SUSE / openSUSE Security Updates · Jul 15, 2026
- openSUSE-SU-2026:21254-1 Security update for go1.26-openssl SUSE / openSUSE Security Updates · Jul 9, 2026
- ALAS2023-2026-1747 Important: amazon-cloudwatch-agent security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 6, 2026
- ALAS2-2026-3323 Important: amazon-cloudwatch-agent security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 6, 2026
- ELSA-2026-22121 Important: golang security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 23, 2026
- ELSA-2026-22112 Important: go-toolset:ol8 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 2, 2026
- ALAS2-2026-3308 Important: golist security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2-2026-3313 Important: golang security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2-2026-3319 Important: nerdctl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1741 Important: runfinch-finch security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1742 Important: golist security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1715 Important: runc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1735 Important: nerdctl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1743 Important: golang security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1736 Important: docker security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1744 Important: credentials-fetcher security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1737 Important: containerd security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1738 Important: amazon-ecr-credential-helper security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1749 Important: golang-github-cpuguy83-md2man security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1739 Important: oci-add-hooks security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1750 Important: golang-github-burntsushi-toml-test security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1740 Important: soci-snapshotter security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1751 Important: golang-github-burntsushi-toml security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- ALAS2023-2026-1771 Important: ecs-init security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 25, 2026
- openSUSE-SU-2026:10741-1 go1.26-1.26.3-1.1 on GA media SUSE / openSUSE Security Updates · May 11, 2026
- openSUSE-SU-2026:10723-1 go1.25-1.25.10-1.1 on GA media SUSE / openSUSE Security Updates · May 9, 2026