{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-101894", "tracking": { "current_release_date": "2026-10-21T09:28:18.215752Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-101894", "initial_release_date": "2026-09-28T17:32:14.154453Z", "revision_history": [ { "date": "2026-09-28T17:32:14.154453Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-09-28T17:32:22.934814Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-09-28T17:38:44.137132Z", "number": "3", "summary": "CVSS created.| CWES created (2).| Products created (3).| References created (5).| Description created for source.| Unknown change." }, { "date": "2026-09-28T17:38:55.551911Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-09-28T18:38:51.297858Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-09-29T06:13:18.906658Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| Products connected (11).| References created (7).| CWES updated (1)." }, { "date": "2026-09-29T16:12:57.696548Z", "number": "7", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:13:03.052139Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-09-30T00:39:58.104995Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-09-30T00:40:01.916631Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-10-21T09:28:00.972153Z", "number": "11", "summary": "Products removed (5)." } ], "status": "interim", "version": "11" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<10.2.2", "product": { "name": "vers:unknown/>=0|<10.2.2", "product_id": "CSAFPID-9657261" } }, { "category": "product_version_range", "name": "vers:unknown/>=11.0.0|<11.1.4", "product": { "name": "vers:unknown/>=11.0.0|<11.1.4", "product_id": "CSAFPID-9657262" } } ], "category": "product_name", "name": "@xhmikosr/decompress" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<10.2.2", "product": { "name": "vers:unknown/<10.2.2", "product_id": "CSAFPID-9482820" } }, { "category": "product_version_range", "name": "vers:unknown/>=0|<=4.2.1", "product": { "name": "vers:unknown/>=0|<=4.2.1", "product_id": "CSAFPID-8537990" } }, { "category": "product_version_range", "name": "vers:unknown/>=11.0.0|<11.1.4", "product": { "name": "vers:unknown/>=11.0.0|<11.1.4", "product_id": "CSAFPID-9482821" } } ], "category": "product_name", "name": "decompress" } ], "category": "vendor", "name": "XhmikosR" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=4.2.1", "product": { "name": "vers:unknown/<=4.2.1", "product_id": "CSAFPID-9482822" } } ], "category": "product_name", "name": "decompress" } ], "category": "vendor", "name": "kevva" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/v11.0.0", "product": { "name": "vers:unknown/v11.0.0", "product_id": "CSAFPID-8850522" } }, { "category": "product_version_range", "name": "vers:unknown/v11.0.1", "product": { "name": "vers:unknown/v11.0.1", "product_id": "CSAFPID-8850521" } }, { "category": "product_version_range", "name": "vers:unknown/v11.0.2", "product": { "name": "vers:unknown/v11.0.2", "product_id": "CSAFPID-8850520" } }, { "category": "product_version_range", "name": "vers:unknown/v11.1.0", "product": { "name": "vers:unknown/v11.1.0", "product_id": "CSAFPID-8850519" } }, { "category": "product_version_range", "name": "vers:unknown/v11.1.1", "product": { "name": "vers:unknown/v11.1.1", "product_id": "CSAFPID-8850518" } }, { "category": "product_version_range", "name": "vers:unknown/v11.1.2", "product": { "name": "vers:unknown/v11.1.2", "product_id": "CSAFPID-8850517" } }, { "category": "product_version_range", "name": "vers:unknown/v11.1.3", "product": { "name": "vers:unknown/v11.1.3", "product_id": "CSAFPID-9485033" } }, { "category": "product_version_range", "name": "vers:unknown/v3.0.0", "product": { "name": "vers:unknown/v3.0.0", "product_id": "CSAFPID-8850536" } }, { "category": "product_version_range", "name": "vers:unknown/v4.0.0", "product": { "name": "vers:unknown/v4.0.0", "product_id": "CSAFPID-8850535" } }, { "category": "product_version_range", "name": "vers:unknown/v4.1.0", "product": { "name": "vers:unknown/v4.1.0", "product_id": "CSAFPID-8850534" } }, { "category": "product_version_range", "name": "vers:unknown/v4.2.0", "product": { "name": "vers:unknown/v4.2.0", "product_id": "CSAFPID-8850533" } }, { "category": "product_version_range", "name": "vers:unknown/v4.2.1", "product": { "name": "vers:unknown/v4.2.1", "product_id": "CSAFPID-8850532" } } ], "category": "product_name", "name": "decompress" } ], "category": "vendor", "name": "xhmikosr" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-101894", "cwe": { "id": "CWE-22", "name": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')" }, "notes": [ { "category": "description", "text": "The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the default decompress(input, output) API relies on lexical containment checks that do not account for the kernel following a planted symlink chain. An attacker can supply a crafted archive containing chained symlink entries so that a later entry resolves outside the output directory. This allows files outside output to be read or written, and overwriting startup scripts or configuration can lead to remote code execution. The maintained @xhmikosr/decompress package is fixed in 10.2.2 and 11.1.4, but the separately affected unmaintained decompress package remains unpatched through 4.2.1. This vulnerability results from a bypass of the incomplete hardening for CVE-2026-53486. @xhmikosr/decompress is fixed in versions 10.2.2 and 11.1.4.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-101894" }, { "category": "description", "text": "The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the default decompress(input, output) API relies on lexical containment checks that do not account for the kernel following a planted symlink chain. An attacker can supply a crafted archive containing chained symlink entries so that a later entry resolves outside the output directory. This allows files outside output to be read or written, and overwriting startup scripts or configuration can lead to remote code execution. The maintained @xhmikosr/decompress package is fixed in 10.2.2 and 11.1.4, but the separately affected unmaintained decompress package remains unpatched through 4.2.1. This vulnerability results from a bypass of the incomplete hardening for CVE-2026-53486. @xhmikosr/decompress is fixed in versions 10.2.2 and 11.1.4.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-101894" }, { "category": "description", "text": "The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the default decompress(input, output) API relies on lexical containment checks that do not account for the kernel following a planted symlink chain. An attacker can supply a crafted archive containing chained symlink entries so that a later entry resolves outside the output directory. This allows files outside output to be read or written, and overwriting startup scripts or configuration can lead to remote code execution. The maintained @xhmikosr/decompress package is fixed in 10.2.2 and 11.1.4, but the separately affected unmaintained decompress package remains unpatched through 4.2.1. This vulnerability results from a bypass of the incomplete hardening for CVE-2026-53486. @xhmikosr/decompress is fixed in versions 10.2.2 and 11.1.4.", "title": "osvgit - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101894.json?alt=media" }, { "category": "description", "text": "### Impact\n\nWhen extracting an untrusted archive with the default `decompress(input, output)` API, a crafted archive containing a chain of symlink entries can make a later entry resolve **outside** the output directory. The lexical containment checks pass, but the kernel follows the planted symlinks to a path outside `output`, letting an attacker write (and read) files outside the intended extraction directory. Overwriting startup scripts or configuration can lead to remote code execution.\n\nThis is a bypass of the hardening in GHSA-mp2f-45pm-3cg9. Any application that extracts attacker-controlled archives is affected.\n\n### Patches\n\nFixed in **11.1.4** (`latest`) and backported to **10.2.2** (`release-v10` dist-tag). Upgrade to one of these.\n\nThe unmaintained upstream `decompress` package shares this flaw and will not be patched. Migrate to `@xhmikosr/decompress@11.1.4` (or `@10.2.2`).\n\n### Workarounds\n\nNone. Do not extract untrusted archives on affected versions. If you cannot upgrade, validate entries out of band and reject any whose resolved path escapes the target directory.", "title": "osvnpm - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-hrh2-vp3x-79xf.json?alt=media" }, { "category": "description", "text": "### Impact\n\nWhen extracting an untrusted archive with the default `decompress(input, output)` API, a crafted archive containing a chain of symlink entries can make a later entry resolve **outside** the output directory. The lexical containment checks pass, but the kernel follows the planted symlinks to a path outside `output`, letting an attacker write (and read) files outside the intended extraction directory. Overwriting startup scripts or configuration can lead to remote code execution.\n\nThis is a bypass of the hardening in GHSA-mp2f-45pm-3cg9. Any application that extracts attacker-controlled archives is affected.\n\n### Patches\n\nFixed in **11.1.4** (`latest`) and backported to **10.2.2** (`release-v10` dist-tag). Upgrade to one of these.\n\nThe unmaintained upstream `decompress` package shares this flaw and will not be patched. Migrate to `@xhmikosr/decompress@11.1.4` (or `@10.2.2`).\n\n### Workarounds\n\nNone. Do not extract untrusted archives on affected versions. If you cannot upgrade, validate entries out of band and reject any whose resolved path escapes the target directory.", "title": "github - https://github.com/advisories/GHSA-hrh2-vp3x-79xf" }, { "category": "other", "text": "0.00814", "title": "EPSS" }, { "category": "other", "text": "3.9", "title": "NCSC Score" }, { "category": "other", "text": "The CVSS vector string contains AV:N (Attack Vector: Network)", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-9482820", "CSAFPID-9482821", "CSAFPID-9482822", "CSAFPID-8850522", "CSAFPID-8850521", "CSAFPID-8850520", "CSAFPID-8850519", "CSAFPID-8850518", "CSAFPID-8850517", "CSAFPID-9485033", "CSAFPID-9657261", "CSAFPID-9657262", "CSAFPID-8537990" ] }, "references": [ { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101894.json?alt=media" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101894" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-101894" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101894" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-hrh2-vp3x-79xf" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-hrh2-vp3x-79xf.json?alt=media" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/XhmikosR/decompress/commit/5f4b2f64abb31bbaf1fef8975b595fd7df2558d8" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/XhmikosR/decompress/commit/f6c88c668216d6a12c6cecf4fe0b6c70bf77050a" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/XhmikosR/decompress/releases/tag/v10.2.2" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/XhmikosR/decompress/releases/tag/v11.1.4" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/XhmikosR/decompress/security/advisories/GHSA-hrh2-vp3x-79xf" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101894" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-hrh2-vp3x-79xf" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101894.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 9.1, "baseSeverity": "CRITICAL" }, "products": [ "CSAFPID-8537990", "CSAFPID-8850517", "CSAFPID-8850518", "CSAFPID-8850519", "CSAFPID-8850520", "CSAFPID-8850521", "CSAFPID-8850522", "CSAFPID-9482820", "CSAFPID-9482821", "CSAFPID-9482822", "CSAFPID-9485033", "CSAFPID-9657261", "CSAFPID-9657262" ] } ], "title": "CVE-2026-101894" } ] }