node-tar: Process crash via PAX numeric path type confusion
Priority HIGH 72CWE-704Published · 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: 32 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-704 and the CVSS impact.
Summary
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, node-tar coerces all-digit PAX path and linkpath values in src/pax.ts to JavaScript numbers, causing downstream path handling such as normalizeWindowsPath(entry.path).split('/') to throw an uncaught TypeError. This issue is fixed in version 7.5.18.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00644 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial node-tar (isaacs): 7.5.18tar (npm): 7.5.18Red Hat: 32 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 | before 7.5.18 | 7.5.18 | Patch available | CNA |
| — | tar (npm) | before 7.5.18 | 7.5.18 | Patch available | GHSA-w8wr-v893-vjvp |
- node-tar Vendorisaacs Affected before 7.5.18 Fixed in 7.5.18 Patch available CNA
- tar (npm) Vendor— Affected before 7.5.18 Fixed in 7.5.18 Patch available GHSA-w8wr-v893-vjvp
Remediation
- Fix · CNA node-tar (isaacs) Fixed in 7.5.18
- Fix · GHSA-w8wr-v893-vjvp tar (npm) Fixed in 7.5.18 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 |
| Exploit Intelligence | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Containers | Affected | No fix yet: Fix deferred |
| Node HealthCheck Operator | Affected | No fix yet: Fix deferred |
| OpenShift Pipelines | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 3 | 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 Build of Podman Desktop | 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 JBoss Enterprise Application Platform 7 | 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 Container Platform 5 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat Openshift Data Foundation 4 | 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 build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
| Self-service automation portal 2 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-59871
- 2026-10-03 Alias added: GHSA-w8wr-v893-vjvp
- 2026-10-21 EPSS moved to the 50th–90th percentile
- 2026-10-27 Affected versions changed · Red Hat
- 2026-11-02 Affected versions changed · Red Hat
References
More isaacs Tar 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-2026-24357 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
- TI-2026-20041 node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal CVSS 3.1HIGH 8.2
- TI-2026-19118 node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization CVSS 4.0HIGH 8.2
Sources
- CVE-2026-59871 · CVE Program
- CVE-2026-59871 · NVD
- FIRST EPSS
- GHSA-w8wr-v893-vjvp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-59871 · 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