{"answers":{"affected":"3 open source packages ship an affected version, including github.com/patrickhener/goshs. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40188 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-40188 is a high-severity path traversal vulnerability in patrickhener goshs, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40188 and fix it if it is affected.\n\nWhat it is: CVE-2026-40188 is a high-severity path traversal vulnerability in patrickhener goshs, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40188 exists.\n\nAffected packages and fixed versions:\n- github.com/patrickhener/goshs (Go): affected from 1.0.7; no fix listed\n- github.com/patrickhener/goshs (Go): affected from 1.0.7 up to 1.1.4; no fix listed\n- github.com/patrickhener/goshs (Go): affected from 1.0.7 up to 1.1.4; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-40188/ (Markdown: https://insights.sbomify.com/CVE-2026-40188/index.md)","id":"CVE-2026-40188","markdown":"https://insights.sbomify.com/CVE-2026-40188/index.md","name":"CVE-2026-40188","record":{"aliases":["GHSA-2943-crp8-38xx","GO-2026-4953"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Go HTTP server","requires_auth":"low_privilege","summary":"An attacker can write files outside the SFTP root directory due to insufficient sanitization of the destination path in the rename command.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"goshs","vendor":"goshs"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-1314","name":"Missing Write Protection for Parametric Data Values"}],"description":"goshs is a SimpleHTTPServer written in Go. From 1.0.7 to before 2.0.0-beta.4, the SFTP command rename sanitizes only the source path and not the destination, so it is possible to write outside of the root directory of the SFTP. This vulnerability is fixed in 2.0.0-beta.4.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"goshs is Missing Write Protection for Parametric Data Values","id":"CVE-2026-40188","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"goshs has a file-based ACL authorization bypass in goshs state-changing routes","id":"CVE-2026-40189"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["1.0.7"],"last_affected":[],"package":"github.com/patrickhener/goshs","purl":"pkg:golang/github.com/patrickhener/goshs","source":"GO-2026-4953"},{"ecosystem":"Go","fixed":[],"introduced":["1.0.7"],"last_affected":["1.1.4"],"package":"github.com/patrickhener/goshs","purl":null,"source":"GHSA-2943-crp8-38xx"},{"ecosystem":"Go","fixed":[],"introduced":["1.0.7"],"last_affected":["1.1.4"],"package":"github.com/patrickhener/goshs","purl":"pkg:golang/github.com/patrickhener/goshs","source":"GHSA-2943-crp8-38xx"}],"prev":{"headline":"Authenticated RCE via Malicious eTemplate Upload in EGroupware","id":"CVE-2026-40187"},"products":["goshs"],"published":"2026-04-10","related":[{"cvss_score":9.8,"headline":"goshs: Empty-username SFTP password authentication bypass in goshs","id":"CVE-2026-40884","kev_date_added":null,"published":"2026-04-21"},{"cvss_score":9.8,"headline":"goshs has an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs PUT Upload","id":"CVE-2026-35392","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":9.8,"headline":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs POST multipart upload","id":"CVE-2026-35393","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":9.8,"headline":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs","id":"CVE-2026-35471","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":9.3,"headline":"goshs has a file-based ACL authorization bypass in goshs state-changing routes","id":"CVE-2026-40189","kev_date_added":null,"published":"2026-04-10"},{"cvss_score":9.1,"headline":"Goshs - ArtiPACKED Vulnerability – GitHub Actions Credential Persistence","id":"CVE-2026-40903","kev_date_added":null,"published":"2026-04-21"},{"cvss_score":8.7,"headline":"SFTP root escape via prefix-based path validation in goshs","id":"CVE-2026-40876","kev_date_added":null,"published":"2026-04-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-13","vendors":["patrickhener"]},"summary":"An attacker can write files outside the SFTP root directory due to insufficient sanitization of the destination path in the rename command.","url":"https://insights.sbomify.com/CVE-2026-40188/"}