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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-23950

26
FAUCET Score

CVE-2026-23950 describes a race condition vulnerability in node-tar versions up to 7.5.3, affecting systems using macOS APFS or HFS+ filesystems. This flaw, due to incomplete handling of Unicode path collisions in the path-reservations system, allows colliding paths (e.g., 'ß' and 'ss') to be processed in parallel, bypassing concurrency safeguards. This medium-severity vulnerability (CVSS 5.9) has a network attack vector and high impact on integrity, enabling arbitrary file overwrite via symlink poisoning attacks. There is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion, with only one mention.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.5.4CPE matchmatch criteria
cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
5.3
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
13.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 1st percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (34)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: tarFixed in: 7.5.4
redhatpatch availablevia redhat_api
Product: Red Hat Trusted Artifact Signer 1.3Fixed in: rhtas/rekor-search-ui-rhel9:sha256:3971738912069448174202486b61ed384153ca18af3e8430a55795a6e65eb58d
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Trusted Artifact Signer 1.2Fixed in: rhtas/rekor-search-ui-rhel9:sha256:1e3a46ade52215e2c78df9229f36301c94099e8397ee74ab99fb8bd504ce7aa2
View patch
redhatno patchvia redhat_api
Product: Confidential Compute AttestationFixed in: openshift-sandboxed-containers/osc-pccs
redhatno patchvia redhat_api
Product: Migration Toolkit for ContainersFixed in: rhmtc/openshift-migration-ui-rhel8
redhatno patchvia redhat_api
Product: Network Observability OperatorFixed in: network-observability/network-observability-console-plugin-rhel9
redhatno patchvia redhat_api
Product: OpenShift LightspeedFixed in: openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9
redhatno patchvia redhat_api
Product: OpenShift ServerlessFixed in: openshift-serverless-1/kn-eventing-integrations-transform-jsonata-rhel9
redhatno patchvia redhat_api
Product: Red Hat Connectivity Link 1Fixed in: rhcl-1/rhcl-console-plugin-rhel9
redhatno patchvia redhat_api
Product: Red Hat Developer HubFixed in: rhdh/rhdh-hub-rhel9
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: linux-sgx
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: linux-sgx
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux AI (RHEL AI) 3Fixed in: rhelai3/bootc-cuda-rhel9
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-dashboard-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-dashboard-rhel9
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-console
redhatno patchvia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: odf4/mcg-core-rhel9
redhatno patchvia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: odf4/odf-console-rhel9
redhatno patchvia redhat_api
Product: Red Hat OpenShift Dev SpacesFixed in: devspaces/udi-rhel9
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: satellite/iop-remediations-rhel9
redhatend of lifevia redhat_api
Product: OpenShift PipelinesFixed in: openshift-pipelines/pipelines-console-plugin-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Fuse 7Fixed in: io.hawt-project
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp20/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp21/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp22/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp24/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp25/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp26/system
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel7
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel8
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel9
redhatend of lifevia redhat_api
Product: Red Hat OpenShift GitOpsFixed in: openshift-gitops-1/argocd-rhel8
redhatend of lifevia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/kibana6-rhel8

Vendor Advisories (2)

npmGHSA-r6q2-hw4h-h46whigh

Race Condition in node-tar Path Reservations via Unicode Ligature Collisions on macOS APFS

Jan 21, 2026
redhatCVE-2026-23950Important

node-tar: tar: node-tar: Arbitrary file overwrite via Unicode path collision race condition

Jan 20, 2026

References

access.redhat.com / errata/RHSA-2026:18480
access.redhat.com / errata/RHSA-2026:18868
access.redhat.com / errata/RHSA-2026:2144
access.redhat.com / errata/RHSA-2026:2926
access.redhat.com / errata/RHSA-2026:6192
access.redhat.com / security/cve/CVE-2026-23950
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-23950.json
github.com / isaacs/node-tar/commit/3b1abfae650056edfabcbe0a0df5954d390521e6
Patch
github.com / isaacs/node-tar/security/advisories/GHSA-r6q2-hw4h-h46w
ExploitMitigationVendor Advisory