CVE-2026-23644

esm.sh is a no-build content delivery network (CDN) for web development. Prior to Go pseeudoversion 0.0.0-20260116051925-c62ab83c589e, the software has a path traversal vulnerability due to an incomplete fix. `path.Clean` normalizes a path but does not prevent absolute paths in a malicious tar file. Commit https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16, corresponding to pseudoversion 0.0.0-20260116051925-c62ab83c589e, fixes this issue.

• CWE-22

• https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16Patch
• https://github.com/esm-dev/esm.sh/commit/c62ab83c589e7b421a0e1376d2a00a4e48161093Patch
• https://github.com/esm-dev/esm.sh/security/advisories/GHSA-2657-3c98-63jqVendor Advisory
• https://pkg.go.dev/vuln/GO-2025-4138Exploit, Vendor Advisory

Published

Jan 18, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-23634Pepr is a type safe K8s middleware. Prior to 1.0.5 , Pepr de…4.3
• CVE-2026-23635Kiteworks is a private data network (PDN). In Kiteworks Secu…6.5
• CVE-2026-23636Kiteworks is a private data network (PDN). In Kiteworks Secu…7.2
• CVE-2026-23638Kiteworks is a private data network (PDN). Prior to version …6.5
• CVE-2026-2364If a legitimate user confirms a self-update prompt or initia…7.3
• CVE-2026-23643CakePHP is a rapid development framework for PHP. The Pagina…5.4
• CVE-2026-23645SiYuan is self-hosted, open source personal knowledge manage…6.1
• CVE-2026-23646OpenProject is an open-source, web-based project management …6.5
• CVE-2026-23647Glory RBG-100 recycler systems using the ISPK-08 software co…9.8
• CVE-2026-23648Glory RBG-100 recycler systems using the ISPK-08 software co…8.5
• CVE-2026-2365The Fluent Forms Pro plugin for WordPress is vulnerable to S…7.2
• CVE-2026-23651Permissive regular expression in Azure Compute Gallery allow…6.7