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Fencer Intel
medium 6.3

CVE-2026-71557 json

go-git: Malicious reference names may modify files outside the reference storage

published 3mo ago modified 2mo ago also EUVD-2026-54527 , GHSA-qgq7-7hm3-q39j , GO-2026-6214

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.

Patch / fix

  • go github.com/go-git/go-git/v5 5.19.2
  • go github.com/go-git/go-git/v6 6.0.0-alpha.5
  • go-git_project go-git 5.19.2, 6.0.0-alpha.5
  • golang-github-go-git-go-git Debian 14 5.19.2-1
  • golang-github-go-git-go-git-v6 Debian 14 6.0.0~alpha.5-1

debian advisories DEBIAN-CVE-2026-71557

  • grype hummingbird 1 0.119.0-0.1.hum1
  • syft hummingbird 1 1.52.0-0.1.hum1
  • trivy hummingbird 1 0.74.0-0.3.hum1
  • kube-state-metrics hummingbird 1 2.20.0-0.2.hum1

red hat advisories RHSA-2026:68806RHSA-2026:68808RHSA-2026:68281RHSA-2026:66208

  • terraform-provider-aws SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.11.0-150200.6.29.2
  • terraform-provider-tls SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.5.26.2
  • terraform-provider-helm SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.9.0-150200.6.34.2
  • terraform-provider-null SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.6.32.2
  • terraform-provider-local SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.0.0-150200.6.30.2
  • terraform-provider-google SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.43.0-150200.6.23.2
  • terraform-provider-random SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.6.26.2
  • terraform-provider-azurerm SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.32.0-150200.6.23.2

suse advisories SUSE-SU-2026:4628-1SUSE-SU-2026:24148-1SUSE-SU-2026:4408-1SUSE-SU-2026:4286-1SUSE-SU-2026:4082-1SUSE-SU-2026:23625-1

  • alloy openSUSE Leap 16.0 1.19.2-160000.1.1
  • amazon-ssm-agent openSUSE Leap 16.0 3.3.5390.0-160000.1.1
  • alloy openSUSE Tumbleweed 1.19.2-1.1
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1

opensuse advisories openSUSE-SU-2026:22032-1openSUSE-SU-2026:21884-1openSUSE-SU-2026:11803-1openSUSE-SU-2026:21761-1

  • packer Azure Linux 3.0 1.9.5-20

azure linux advisories AZL-95487

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-71557 updated cvss 6.3

github.com/go-git/go-git: github.com/go-git/go-git/v5: go-git: Unauthorized file modification via directory traversal in reference names

  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai/assisted-installer-controller-rhel9, assisted/agent-preinstall-image-builder-rhel9 Red Hat Builds for Red Hat OpenShift openshift-builds/openshift-builds-waiters-rhel9, openshift-builds/openshift-builds-webhook-rhel9, openshift-builds/openshift-builds-controller-rhel9, openshift-builds/openshift-builds-git-cloner-rhel9, openshift-builds/openshift-builds-image-bundler-rhel9, openshift-builds/openshift-builds-image-processing-rhel9 Red Hat Compliance Operator compliance/openshift-compliance-must-gather-rhel8 Red Hat Confidential Compute Attestation build-of-trustee/trustee-must-gather-rhel9, openshift-sandboxed-containers/osc-must-gather-rhel9, openshift-sandboxed-containers/osc-podvm-builder-rhel9 Red Hat Custom Metric Autoscaler operator for Red Hat Openshift custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator Red Hat DPU kit for NVIDIA dpu-kit-for-nvidia/must-gather-rhel10
    +34 more products
    Red Hat Exploit Intelligence exploit-intelligence/agent-client-rhel9, exploit-intelligence-tech-preview/agent-client-rhel9, exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/external-secrets-rhel9 Red Hat Kernel Module Management Operator for Red Hat Openshift kmm/kernel-module-management-must-gather-rhel9 Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/cluster-logging-rhel9-operator Red Hat Logical Volume Manager Storage lvms4/lvms-must-gather-rhel8, lvms4/lvms-must-gather-rhel9 Red Hat Machine Deletion Remediation Operator workload-availability/machine-deletion-remediation-rhel9-operator, workload-availability/machine-deletion-remediation-operator-bundle Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-log-reader-rhel8, rhmtc/openshift-migration-must-gather-rhel8 Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-must-gather-rhel8, migration-toolkit-virtualization/mtv-must-gather-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/must-gather-rhel9, multicluster-engine/assisted-service-8-rhel8, multicluster-engine/assisted-service-9-rhel9, multicluster-engine/cluster-image-set-controller-rhel9, multicluster-engine/assisted-installer-controller-rhel8, multicluster-engine/assisted-installer-controller-rhel9 Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-must-gather-rhel8, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift API for Data Protection oadp/oadp-mustgather-rhel9 Red Hat OpenShift Developer Tools and Services ocp-tools-4/jenkins-rhel8, ocp-tools-4/jenkins-rhel9, ocp-tools-4/jenkins-agent-base-rhel8, ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-agentic-sandbox-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-resolvers-rhel8 Red Hat OpenShift Serverless openshift-serverless-1/kn-client-kn-rhel9, openshift-serverless-clients 1.17.0-4.el9, openshift-serverless-1/serverless-must-gather-rhel9, openshift-serverless-1/kn-plugin-func-func-util-rhel9 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/istio-must-gather-rhel9 Red Hat Pen Drive Powered by Red Hat Lightspeed pen-drive/pen-drive-scanner-rhel9 Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/power-monitoring-rhel9-operator Red Hat Advanced Cluster Management for Kubernetes 2 flightctl-agent, flightctl-selinux, flightctl 0.5.1-2.el8fc, rhacm2/acm-must-gather-rhel9, rhacm2/kube-state-metrics-rhel9, rhacm2/submariner-rhel9-operator, +2 more Red Hat AI Inference Server rhaiis/vllm-cpu-rhel9, rhaiis/vllm-tpu-rhel9 Red Hat Ansible Automation Platform 2 ansible-automation-platform-24/ee-supported-rhel8, ansible-automation-platform-24/ee-supported-rhel9, ansible-automation-platform-25/ee-supported-rhel8, ansible-automation-platform-25/ee-supported-rhel9, ansible-automation-platform-26/ee-supported-rhel9, ansible-automation-platform-27/ee-supported-rhel9, +8 more Red Hat Build of Kueue kueue/kueue-must-gather-rhel9 Red Hat Ceph Storage 9 rhceph/alloy-rhel10 Red Hat Certification Program for Red Hat Enterprise Linux 9 rhcertification/redhat-certification-baremetal Red Hat Developer Hub 1 rhdh/rhdh-must-gather-rhel9 Red Hat Edge Manager 1 flightctl 0.5.1-2.el8fc, rhem/flightctl-api-rhel9, rhem/flightctl-api-rhel10, rhem/flightctl-worker-rhel9, rhem/flightctl-worker-rhel10, rhem/flightctl-db-setup-rhel9, +19 more Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat Enterprise Linux 9 grafana, grafana-selinux Red Hat OpenShift AI (RHOAI) rhoai/rhai-cli-rhel9, rhoai/odh-must-gather-rhel9, rhoai/odh-th06-cpu-torch291-py312-rhel9, rhoai/odh-th06-cuda130-torch291-py312-rhel9, rhoai/odh-ai-gateway-payload-processing-e2e-rhel9, rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9, +19 more Red Hat OpenShift Container Platform 4 cri-o, openshift, openshift-clients, openshift-kubelet, openshift4/ose-cli, openshift-hyperkube, +73 more Red Hat OpenShift Container Platform 5 cri-o, openshift-clients, openshift-kni/commatrix, openshift5/ose-cli-rhel9, openshift5/cnf-tests-rhel9, openshift5/ose-tests-rhel9, +35 more Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, odf4/odf-must-gather-rhel9, odf4/odf-multicluster-rhel9-operator Red Hat OpenShift Dev Spaces devspaces/udi-rhel9 Red Hat OpenShift Dev Workspaces Operator devworkspace/devworkspace-rhel9-operator, devworkspace/devworkspace-operator-bundle, devworkspace/devworkspace-project-clone-rhel9
    affected: workaround, no fix available “Fix deferred”

7 more affected, 1 more fixed, 4 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
GitHub 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L

Affected packages

ecosystem package affected fixed in
go github.com/go-git/go-git/v5
<5.19.2
5.19.2
go github.com/go-git/go-git/v6
<6.0.0-alpha.5
6.0.0-alpha.5

Affected products

  • go-git go-git

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.