In x/text in Go 1.15.4, an "index out of range" panic occurs in…
Priority LOW 37CWE-129Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 11 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-129 and the CVSS impact.
Summary
In x/text in Go 1.15.4, an "index out of range" panic occurs in language.ParseAcceptLanguage while parsing the -u- extension. (x/text/language is supposed to be able to parse an HTTP Accept-Language header.)
Why it matters now
EPSS 0.02325 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 6 advisoriesRed Hat: 4 fixed, 11 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:golang:go:1.15.4:*:*:*:*:*:*:* | 1.15.4 | Vulnerable | Go standard library |
- cpe:2.3:a:golang:go:1.15.4:*:*:*:*:*:*:* Versions 1.15.4 Vulnerable ·Go standard library
Remediation
Red Hat 6 advisories
- RHSA-2022:7954 Released 2022-11-15 · Red Hat rating Moderatepodman security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 9) podman-2:4.2.0-3.el9, podman-docker-2:4.2.0-3.el9, podman-gvproxy-2:4.2.0-3.el9 +3
- RHSA-2022:7129 Released 2022-10-25 · Red Hat rating Moderategit-lfs security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) git-lfs-2.13.3-3.el8_6
- RHSA-2022:1762 Released 2022-05-10 · Red Hat rating Importantcontainer-tools:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.aarch64::container-tools:rhel8, aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.ppc64le::container-tools:rhel8, aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.s390x::container-tools:rhel8 +47
Show 3 more Red Hat advisories
- RHSA-2022:1276 Released 2022-04-07 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 2.0.9 security update
- OpenShift Service Mesh 2.0 kiali-v1.24.7.redhat1-1.el8, servicemesh-2.0.9-3.el8, servicemesh-istioctl-2.0.9-3.el8 +6
- RHSA-2022:0577 Released 2022-03-28 · Red Hat rating ModerateWindows Container Support for Red Hat OpenShift 5.0.0 [security update]
- Red Hat OpenShift Container Platform 4.10 openshift4-wincw/windows-machine-config-operator-bundle, openshift4-wincw/windows-machine-config-rhel8-operator
- RHSA-2021:1168 Released 2021-04-13 · Red Hat rating ImportantRed Hat Advanced Cluster Management 2.2.2 security and bug fix update
- Red Hat Advanced Cluster Management for Kubernetes 2.2 for RHEL 7 rhacm2/management-ingress-rhel7, rhacm2/memcached-exporter-rhel7, rhacm2/openshift-hive-rhel7 +2
- Red Hat Advanced Cluster Management for Kubernetes 2.2 for RHEL 8 rhacm2/acm-must-gather-rhel8, rhacm2/acm-operator-bundle, rhacm2/acmesolver-rhel8 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat Ceph Storage 2 | Affected | No fix planned: Out of support scope |
| Red Hat Ceph Storage 3 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Virtualization 2 | Affected | No fix planned: Will not fix |
| Red Hat Openshift Container Storage 4 | Affected | No fix yet: Fix deferred |
| Red Hat Quay 3 | Affected | No fix yet |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Storage 3 | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 2.0 | Fixed | RHSA-2022:1276 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:1762, RHSA-2022:7129 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:7954 |
| Red Hat OpenShift Container Platform 4.10 | Fixed | RHSA-2022:0577 |
Not affected: 9 products
- OpenShift Service Mesh 2.0
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Virtualization 2
- Red Hat Openshift Container Storage 4
- Red Hat Software Collections
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28851
- 2026-10-03 Alias added: GHSA-739f-9qhv-6594
References
More Go standard library Go vulnerabilities
- TI-2020-00578 Improper certificate validation in Microsoft Windows KEVCVSS 3.1HIGH 8.1
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2018-05208 The "go get" implementation in Go 1.9.4, when the -insecure command-line option is used… CVSS 3.1HIGH 8.8
- TI-2018-12083 Improper input validation in [UNKNOWN] golang CVSS 3.1HIGH 8.1
- TI-2024-16306 Mishandling of corrupt central directory record in archive/zip CVSS 3.1MEDIUM 5.5
- TI-2021-15910 Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-28851 · CVE Program
- CVE-2020-28851 · NVD
- FIRST EPSS
- GHSA-739f-9qhv-6594 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-28851 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences