{"answers":{"affected":"3 open source packages ship an affected version, including github.com/henrygd/beszel. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40077 exists.","fix":"Upgrade github.com/henrygd/beszel to 0.18.7 or later.","what":"CVE-2026-40077 is a low-severity missing authorization vulnerability in henrygd beszel, published on 9 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-2026-40077 and fix it if it is affected.\n\nWhat it is: CVE-2026-40077 is a low-severity missing authorization vulnerability in henrygd beszel, published on 9 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-2026-40077 exists.\n\nAffected packages and fixed versions:\n- github.com/henrygd/beszel (Go): affected all versions; fixed in 0.18.7\n- github.com/henrygd/beszel (Go): affected all versions; fixed in 0.18.7\n- github.com/henrygd/beszel (Go): affected all versions; fixed in 0.18.7\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-2026-40077/ (Markdown: https://insights.sbomify.com/CVE-2026-40077/index.md)","id":"CVE-2026-40077","markdown":"https://insights.sbomify.com/CVE-2026-40077/index.md","name":"CVE-2026-40077","record":{"aliases":["GHSA-5f5r-95pg-xrpm","GO-2026-5141"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Server monitoring platform","requires_auth":"low_privilege","summary":"Authenticated users can access system data for other users by guessing system IDs due to missing authorization checks in the hub API.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"beszel","vendor":"beszel"}],"cvss":{"score":3.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-184","name":"Incomplete List of Disallowed Inputs"}],"description":"Beszel is a server monitoring platform. Prior to 0.18.7, some API endpoints in the Beszel hub accept a user-supplied system ID and proceed without further checks that the user should have access to that system. As a result, any authenticated user can access these routes for any system if they know the system's ID. System IDs are random 15 character alphanumeric strings, and are not exposed to all users. However, it is theoretically possible for an authenticated user to enumerate a valid system ID via web API. To use the containers endpoints, the user would also need to enumerate a container ID, which is 12 digit hexadecimal string. This vulnerability is fixed in 0.18.7.","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":"Beszel has an IDOR in hub API endpoints that read system ID from URL parameter","id":"CVE-2026-40077","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Cacti: Command Injection via escape_command() no-op in RRDtool execution","id":"CVE-2026-40079"},"packages":[{"ecosystem":"Go","fixed":["0.18.7"],"introduced":["0"],"last_affected":[],"package":"github.com/henrygd/beszel","purl":null,"source":"GHSA-5f5r-95pg-xrpm"},{"ecosystem":"Go","fixed":["0.18.7"],"introduced":["0"],"last_affected":[],"package":"github.com/henrygd/beszel","purl":"pkg:golang/github.com/henrygd/beszel","source":"GHSA-5f5r-95pg-xrpm"},{"ecosystem":"Go","fixed":["0.18.7"],"introduced":["0"],"last_affected":[],"package":"github.com/henrygd/beszel","purl":"pkg:golang/github.com/henrygd/beszel","source":"GO-2026-5141"}],"prev":{"headline":"OpenMRS Core arbitrary file write and code execution via Zip Slip in module upload","id":"CVE-2026-40076"},"products":["beszel"],"published":"2026-04-09","related":[{"cvss_score":6.5,"headline":"Beszel Vulnerable to Docker API Path Traversal via Unsanitized Container ID","id":"CVE-2026-27734","kev_date_added":null,"published":"2026-02-27"}],"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":["henrygd"]},"summary":"Authenticated users can access system data for other users by guessing system IDs due to missing authorization checks in the hub API.","url":"https://insights.sbomify.com/CVE-2026-40077/"}