{"answers":{"affected":"4 open source packages ship an affected version, including github.com/patrickhener/goshs/v2 and github.com/patrickhener/goshs. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40883 exists.","fix":"Upgrade github.com/patrickhener/goshs/v2 to 2.0.0-beta.6 or later.","what":"CVE-2026-40883 is a medium-severity vulnerability in patrickhener goshs, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-40883 and fix it if it is affected.\n\nWhat it is: CVE-2026-40883 is a medium-severity vulnerability in patrickhener goshs, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40883 exists.\n\nAffected packages and fixed versions:\n- github.com/patrickhener/goshs/v2 (Go): affected from 2.0.0-beta.4; fixed in 2.0.0-beta.6\n- github.com/patrickhener/goshs/v2 (Go): affected from 2.0.0-beta.4; fixed in 2.0.0-beta.6\n- github.com/patrickhener/goshs/v2 (Go): affected from 2.0.0-beta.4; fixed in 2.0.0-beta.6\n- github.com/patrickhener/goshs (Go): affected all versions; 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-2026-40883/ (Markdown: https://insights.sbomify.com/CVE-2026-40883/index.md)","id":"CVE-2026-40883","markdown":"https://insights.sbomify.com/CVE-2026-40883/index.md","name":"CVE-2026-40883","record":{"aliases":["GHSA-jrq5-hg6x-j6g3","GO-2026-5479"],"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":"none","summary":"An attacker can trick an authenticated user into deleting files or creating directories via CSRF in goshs HTTP server.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"goshs","vendor":"goshs"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs contains a cross-site request forgery issue in its state-changing HTTP GET routes. An external attacker can cause an already authenticated browser to trigger destructive actions such as ?delete and ?mkdir because goshs relies on HTTP basic auth alone and performs no CSRF, Origin, or Referer validation for those routes. This vulnerability is fixed in 2.0.0-beta.6.","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: CSRF in state-changing GET routes enables authenticated file deletion and directory creation","id":"CVE-2026-40883","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"csrf","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"goshs: Empty-username SFTP password authentication bypass in goshs","id":"CVE-2026-40884"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/patrickhener/goshs","purl":"pkg:golang/github.com/patrickhener/goshs","source":"GO-2026-5479"},{"ecosystem":"Go","fixed":["2.0.0-beta.6"],"introduced":["2.0.0-beta.4"],"last_affected":[],"package":"github.com/patrickhener/goshs/v2","purl":null,"source":"GHSA-jrq5-hg6x-j6g3"},{"ecosystem":"Go","fixed":["2.0.0-beta.6"],"introduced":["2.0.0-beta.4"],"last_affected":[],"package":"github.com/patrickhener/goshs/v2","purl":"pkg:golang/github.com/patrickhener/goshs/v2","source":"GHSA-jrq5-hg6x-j6g3"},{"ecosystem":"Go","fixed":["2.0.0-beta.6"],"introduced":["2.0.0-beta.4"],"last_affected":[],"package":"github.com/patrickhener/goshs/v2","purl":"pkg:golang/github.com/patrickhener/goshs/v2","source":"GO-2026-5479"}],"prev":{"headline":"OpenRemote has XXE in Velbus Asset Import","id":"CVE-2026-40882"},"products":["goshs"],"published":"2026-04-21","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":"2026-04-21","vendors":["patrickhener"]},"summary":"An attacker can trick an authenticated user into deleting files or creating directories via CSRF in goshs HTTP server.","url":"https://insights.sbomify.com/CVE-2026-40883/"}