EUVD-2026-42303Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Network-delivered crafted archive requires no auth; impact is process termination only, no confidentiality or integrity loss.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
2DescriptionCVE.org
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.17, node-tar does not strip NUL bytes from PAX path and linkpath records in src/pax.ts, allowing a crafted archive with values to reach fs.lstat or fs.open and terminate the process with an uncaught exception. This issue is fixed in version 7.5.17.
AnalysisAI
Process termination via crafted tar archive affects node-tar prior to 7.5.17, where NUL bytes in PAX path and linkpath header records are not sanitized before being passed to Node.js filesystem calls. Any application using node-tar to extract untrusted archives is susceptible to denial of service through an uncaught exception that crashes the Node.js process. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target application use node-tar prior to version 7.5.17 to extract an attacker-supplied or attacker-influenced tar archive containing PAX extended headers. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L yields a base score of 5.3, reflecting straightforward network-reachable exploitation with no authentication barrier and limited impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a tar archive in PAX format with a path or linkpath header field containing an embedded NUL byte and submits it to a web application, CLI tool, or CI pipeline that uses a vulnerable node-tar version to extract user-supplied or remotely fetched archives. When node-tar processes the PAX headers in src/pax.ts, the unsanitized NUL-containing string is passed to fs.lstat or fs.open, producing an uncaught exception that abruptly terminates the Node.js process and denies service to all concurrent users of that instance. |
| Remediation | Upgrade node-tar to version 7.5.17 or later via npm (npm install node-tar@7.5.17 or yarn upgrade node-tar@7.5.17). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-248 – Uncaught Exception
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