{"answers":{"affected":"3 open source packages ship an affected version, including github.com/mickael-kerjean/filestash.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50891 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-50891 is a high-severity vulnerability in n/a, published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-50891 and fix it if it is affected.\n\nWhat it is: CVE-2026-50891 is a high-severity vulnerability in n/a, published on 15 Jun 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-2026-50891 exists.\n\nAffected packages and fixed versions:\n- github.com/mickael-kerjean/filestash (Go): affected all versions; no fix listed\n- github.com/mickael-kerjean/filestash (Go): affected all versions up to 0.2.2-0.20260827111952-cbcd1e96ebc7; no fix listed\n- github.com/mickael-kerjean/filestash (Go): affected all versions up to 0.2.2-0.20260827111952-cbcd1e96ebc7; 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-2026-50891/ (Markdown: https://insights.sbomify.com/CVE-2026-50891/index.md)","id":"CVE-2026-50891","markdown":"https://insights.sbomify.com/CVE-2026-50891/index.md","name":"CVE-2026-50891","record":{"aliases":["GHSA-rcqf-cpv9-g5jf","GO-2026-6300"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Filestash web application","requires_auth":"low_privilege","summary":"Attackers can escalate privileges by sending crafted requests to the admin API config endpoint in Filestash.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Incorrect access control in the /admin/api/config component of Filestash v0.4.0 allows attackers to escalate privileges via sending a crafted request.","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":"Filestash allows attackers to escalate privileges via sending a crafted request","id":"CVE-2026-50891","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Missing authorization in n/a","id":"CVE-2026-50892"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/mickael-kerjean/filestash","purl":"pkg:golang/github.com/mickael-kerjean/filestash","source":"GO-2026-6300"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.2.2-0.20260827111952-cbcd1e96ebc7"],"package":"github.com/mickael-kerjean/filestash","purl":null,"source":"GHSA-rcqf-cpv9-g5jf"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.2.2-0.20260827111952-cbcd1e96ebc7"],"package":"github.com/mickael-kerjean/filestash","purl":"pkg:golang/github.com/mickael-kerjean/filestash","source":"GHSA-rcqf-cpv9-g5jf"}],"prev":{"headline":"SQL injection in n/a","id":"CVE-2026-50890"},"products":["n/a"],"published":"2026-06-15","related":[],"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":"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":"2026-06-16","vendors":["n/a"]},"summary":"Attackers can escalate privileges by sending crafted requests to the admin API config endpoint in Filestash.","url":"https://insights.sbomify.com/CVE-2026-50891/"}