CVE-2026-31802

🛡️ CVE-2026-31802 - Simple Proof of Concept Viewer 📋 About CVE-2026-31802 This repository provides a proof of concept PoC and write-up for CVE-2026-31802. The issue is a security vulnerability in the npm tar package. It allows attackers to trick the software into writing files outside its allowed...

npm-tar-path-traversal-scanner

CVE-2026-31802 — npm tar 路径遍历扫描器 检测存在 CVE-2026-31802 漏洞的 npm 软件包，该漏洞是 tar npm 软件包中的一个路径遍历漏洞，允许在归档解压过程中写入任意文件。 功能特性 扫描 package-lock.json 中的易受攻击的 tar 版本 检查 nodemodules 中已安装的易受攻击软件包 使用特制的 tar 归档测试解压行为 识别导致易受攻击 tar 的依赖链 支持批量扫描多个项目 生成 JSON/CSV 报告 提供修复建议 安装 root@kitploit: git clone...

CVE-2026-31802

CVE-2026-31802：tar 符号链接路径遍历 / 任意文件覆盖 研究： Joshua van Rijswijk 描述 本仓库包含我针对 CVE-2026-31802 的概念验证和漏洞分析报告，这是 npm tar 包（node-tar）中的一个高危漏洞，影响版本 = 7.5.10。 我发现，通过使用驱动器相对 符号链接目标（例如 C:../../../target.txt），可以诱使 tar 创建指向预期解压目录之外的符号链接。实际上，这使得在解压过程中能够逃逸 cwd，并将归档解压转变为任意文件覆盖原语 。 该漏洞可通过正常解压行为，配合攻击者控制的 tar 归档来触发。 背...

Oracle Linux 9 : nodejs:24 (ELSA-2026-47057)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-47057 advisory. - Fix CVE-2026-59873, CVE-2026-59874 node-tar in npm's bundled tar - Fix CVE-2026-13149 brace-expansion in npm's bundled brace-expansion Tenable has...

Oracle Linux 9 : nodejs:22 (ELSA-2026-47058)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-47058 advisory. - Fix CVE-2026-59873, CVE-2026-59874 node-tar by rebasing npm's bundled tar to 7.5.19 - Fix CVE-2026-13149 brace-expansion in npm's bundled...

Allocation of Resources Without Limits or Throttling

Overview org.webjars.npm:tar is a full-featured Tar for Node.js. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the lack of enforced upper bounds on total decompressed data, entry counts, or decompression ratio in extraction and...

NPM: node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

NPM: node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential file smuggling vulnerability discovered by ? in WordPress Npm tar versions = 7.5.15...

org.webjars.npm:canvas (>=2.5.0, <=2.6.0), org.webjars.npm:color-thief (2.2.5) +12 more potentially affected by CVE-2026-53655 via org.webjars.npm:tar (>=0.1.20, <=4.4.19)

org.webjars.npm:tar MAVEN version =0.1.20, =2.5.0, =0.97.5, =0.2.0, =3.4.0, =0.6.19, =2.0.0, =3.1.4, =3.4.1 - org.webjars.npm:tar.gz 1.0.7 Source cves: CVE-2026-53655 Source advisory: SNYK:JAVA-ORGWEBJARSNPM-17342363...

Exploit for Path Traversal in Isaacs Tar

🛡️ CVE-2026-31802 - Simple Proof of Concept Viewer !Downloa...

org.webjars.npm:canvas (>=2.5.0, <=2.6.0), org.webjars.npm:color-thief (2.2.5) +12 more potentially affected by CVE-2026-26960 via org.webjars.npm:tar (>=0.1.20, <=4.4.19)

org.webjars.npm:tar MAVEN version =0.1.20, =2.5.0, =0.97.5, =0.2.0, =3.4.0, =0.6.19, =2.0.0, =3.1.4, =3.4.1 - org.webjars.npm:tar.gz 1.0.7 Source cves: CVE-2026-26960 Source advisory: SNYK:JAVA-ORGWEBJARSNPM-15307073...

org.webjars.npm:canvas (>=2.5.0, <=2.6.0), org.webjars.npm:color-thief (2.2.5) +12 more potentially affected by CVE-2026-24842 via org.webjars.npm:tar (>=0.1.20, <=4.4.19)

org.webjars.npm:tar MAVEN version =0.1.20, =2.5.0, =0.97.5, =0.2.0, =3.4.0, =0.6.19, =2.0.0, =3.1.4, =3.4.1 - org.webjars.npm:tar.gz 1.0.7 Source cves: CVE-2026-24842 Source advisory: SNYK:JAVA-ORGWEBJARSNPM-15127356...