{"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-2026-40885 exists.","fix":"Upgrade github.com/patrickhener/goshs/v2 to 2.0.0-beta.6 or later.","what":"CVE-2026-40885 is a high-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-2026-40885 and fix it if it is affected.\n\nWhat it is: CVE-2026-40885 is a high-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-2026-40885 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-2026-40885/ (Markdown: https://insights.sbomify.com/CVE-2026-40885/index.md)","id":"CVE-2026-40885","markdown":"https://insights.sbomify.com/CVE-2026-40885/index.md","name":"CVE-2026-40885","record":{"aliases":["GHSA-7h3j-592v-jcrp","GO-2026-5221"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Go HTTP server","requires_auth":"none","summary":"Unauthenticated attackers can capture leaked ACL credentials from websocket feeds to bypass authorization and modify files in protected directories.","user_interaction":"required","vuln_class":"information_disclosure"},"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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials through its public collaborator feed when the server is deployed without global basic auth. Requests to .goshs-protected folders are logged before authorization is enforced, and the collaborator websocket broadcasts raw request headers, including Authorization. An unauthenticated observer can capture a victim's folder-specific basic-auth header and replay it to read, upload, overwrite, and delete files inside the protected subtree. 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: Public collaborator feed leaks .goshs ACL credentials and enables unauthorized access","id":"CVE-2026-40885","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Argo Workflows: Unchecked annotation parsing in pod informer crashes Argo Workflows controller","id":"CVE-2026-40886"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/patrickhener/goshs","purl":"pkg:golang/github.com/patrickhener/goshs","source":"GO-2026-5221"},{"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-7h3j-592v-jcrp"},{"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-7h3j-592v-jcrp"},{"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-2026-5221"}],"prev":{"headline":"goshs: Empty-username SFTP password authentication bypass in goshs","id":"CVE-2026-40884"},"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":"total"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["patrickhener"]},"summary":"Unauthenticated attackers can capture leaked ACL credentials from websocket feeds to bypass authorization and modify files in protected directories.","url":"https://insights.sbomify.com/CVE-2026-40885/"}