GHSA-4r8x-2p26-976p is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in github.com/elazarl/goproxy. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for github.com/elazarl/goproxy — see the affected versions and patch details below.
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA’s SSVC triage for GHSA-4r8x-2p26-976p.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/elazarl/goproxyReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
goproxy prior to pseudoversion 0.0.0-20230731152917-f99041a5c027 was discovered to contain an issue which can lead to a Denial of service (DoS) via unspecified vectors.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/elazarl/goproxy | all versions | 0.0.0-20230731152917-f99041a5c027go get github.com/elazarl/goproxy@v0.0.0-20230731152917-f99041a5c027 |
Affected Products
goproxygoproxy_projectResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/elazarl/goproxy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/elazarl/goproxy to 0.0.0-20230731152917-f99041a5c027 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4r8x-2p26-976p is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
Goproxy is only susceptible to this vulnerability when used in MITM (Man In The Middle) mode. This use case is not relevant to any Red Hat products, so the impact is rated as Moderate.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2.12 for RHEL 9 | rhacm2/acm-cli-rhel9:v2.12.0-17 | RHSA-2024:8974 |
| Red Hat OpenShift Container Platform 4.12 | openshift4/bare-metal-event-relay-operator-bundle:v4.12.5-3 | RHEA-2023:5445 |
| Red Hat OpenShift Container Platform 4.14 | openshift4/ose-aws-ebs-csi-driver-rhel8:v4.14.0-202310201027.p0.g2e2e277.assembly.stream | RHSA-2023:5006 |
| Red Hat OpenShift Container Platform 4.14 | openshift4/ose-aws-efs-csi-driver-rhel8-operator:v4.14.0-202310201027.p0.ge7d739f.assembly.stream | RHSA-2023:5007 |
| Red Hat OpenShift Container Platform 4.14 | openshift-0:4.14.0-202310210404.p0.gf67aeb3.assembly.stream.el8 | RHSA-2023:5009 |
| Red Hat OpenShift Container Platform 4.14 | openshift4/ose-sriov-network-webhook:v4.14.0-202407292140.p0.g96c2605.assembly.stream.el8 | RHSA-2024:4959 |
| Red Hat OpenShift Container Platform 4.14 | openshift4/ose-agent-installer-node-agent-rhel9:v4.14.0-202409231809.p0.g4106eb4.assembly.stream.el9 | RHSA-2024:7184 |
| Red Hat OpenShift Container Platform 4.15 | openshift4/frr-rhel9:v4.15.0-202407191406.p0.ga8191c0.assembly.stream.el9 | RHBA-2024:4698 |
Frequently Asked Questions
Is GHSA-4r8x-2p26-976p in your dependencies?
Find it across Go, including transitive dependencies.