node-tar vulnerable to race condition leading to uninitialized memory exposure
Priority MEDIUM 60CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · Low
- Fix status
- Partial Red Hat: 38 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00134 2nd percentileScored 2026-11-07
Fix Partial tar (npm): 7.5.2Red Hat: 38 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| isaacs | node-tar | = 7.5.1 | — | No fix listed | CNA |
| — | tar (npm) | 7.5.1 to before 7.5.2 | 7.5.2 | Patch available | GHSA-29xp-372q-xqph |
- node-tar Vendorisaacs Affected = 7.5.1 Fixed in — No fix listed CNA
- tar (npm) Vendor— Affected 7.5.1 to before 7.5.2 Fixed in 7.5.2 Patch available GHSA-29xp-372q-xqph
Remediation
- Fix · GHSA-29xp-372q-xqph tar (npm) Fixed in 7.5.2 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Confidential Compute Attestation | Affected | No fix yet: Fix deferred |
| Cryostat 4 | Affected | No fix yet: Fix deferred |
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Containers | Affected | No fix yet: Fix deferred |
| Multicluster Engine for Kubernetes | Affected | No fix yet: Fix deferred |
| Network Observability Operator | Affected | No fix yet: Fix deferred |
| Node HealthCheck Operator | Affected | No fix yet: Fix deferred |
| OpenShift Lightspeed | Affected | No fix yet: Fix deferred |
| OpenShift Pipelines | Affected | No fix yet: Fix deferred |
| OpenShift Serverless | Affected | No fix yet: Fix deferred |
| Red Hat 3scale API Management Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat Connectivity Link 1 | Affected | No fix yet: Fix deferred |
| Red Hat Developer Hub 1 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet: Fix deferred |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift GitOps | Affected | No fix yet: Fix deferred |
| Red Hat Openshift Data Foundation 4 | Affected | No fix yet: Fix deferred |
| Red Hat Process Automation 7 | Affected | No fix yet: Fix deferred |
| Red Hat Quay 3 | Affected | No fix yet: Fix deferred |
| Red Hat Satellite 6 | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix yet: Fix deferred |
| Red Hat Trusted Artifact Signer | Affected | No fix yet: Fix deferred |
| Red Hat Trusted Profile Analyzer | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-64118
- 2026-10-03 Alias added: GHSA-29xp-372q-xqph
- 2026-10-27 Affected versions changed · Red Hat
References
Other 6
- https://github.com/isaacs/node-tar/security/advisories/GHSA-29xp-372q-xqph
- https://github.com/isaacs/node-tar/issues/445
- https://github.com/isaacs/node-tar/pull/446
- https://github.com/isaacs/node-tar/commit/5330eb04bc43014f216e5c271b40d5c00d45224d
- https://github.com/isaacs/node-tar/commit/5e1a8e638600d3c3a2969b4de6a6ec44fa8d74c9
- https://github.com/isaacs/node-tar
More isaacs vulnerabilities
- TI-2026-42687 node-tar: Decompression/parse DoS via unlimited input CVSS 4.0CRITICAL 9.2
- TI-2026-42688 node-tar: Negative tar entry size causes infinite loop in archive replace CVSS 4.0HIGH 8.7
- TI-2026-51656 Uncontrolled resource consumption in isaacs node-tar CVSS 3.1HIGH 7.5
- TI-2026-42686 node-tar: Process crash via PAX numeric path type confusion CVSS 3.1HIGH 7.5
- TI-2026-24357 node-tar Symlink Path Traversal via Drive-Relative Linkpath CVSS 4.0HIGH 8.2
- TI-2026-23372 node-tar: Hardlink Path Traversal via Drive-Relative Linkpath CVSS 4.0HIGH 8.2
Sources
- CVE-2025-64118 · CVE Program
- CVE-2025-64118 · NVD
- FIRST EPSS
- GHSA-29xp-372q-xqph · GitHub Advisory Database · CC BY 4.0
- CVE-2025-64118 · 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