{"id":"CVE-2026-68548","aliases":[],"cve":{"records":[{"id":"CVE-2026-68548","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-07-30T19:56:44.101Z","published":"2026-11-12T19:39:10.279Z","modified":"2026-11-13T00:25:32.382Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-11-12T19:39:10.279Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-13T00:25:32.382Z"}],"references":[{"url":"https://github.com/xyproto/algernon/security/advisories/GHSA-vm84-8c4p-64hx","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/xyproto/algernon/releases/tag/v1.17.10","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/xyproto/algernon/security/advisories/GHSA-vm84-8c4p-64hx","tags":["exploit"],"source":"CISA-ADP"}],"weaknesses":[{"id":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","source":"GitHub_M"},{"id":"CWE-863","description":"CWE-863: Incorrect Authorization","source":"GitHub_M"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-13T00:25:03.923254Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"total"}]}]},"title":"Algernon: Case-insensitive filesystem lets unauthenticated requests bypass /admin,/repo,/data permission-prefix gate","titleSource":"GitHub_M","descriptionSource":"GitHub_M","description":"Algernon is a small self-contained pure-Go web server. Prior to version 1.17.10, Algernon's URL-prefix authorization gate matches its protected prefixes (/admin, /repo, /data) with case-sensitive strings.HasPrefix, while the exact same raw req.URL.Path is later resolved against the filesystem. On case-insensitive filesystems (Windows NTFS — always; macOS APFS/HFS+ — default), a request for /Admin/secret.lua evades every protected-prefix check, falls through to the public-prefix accept branch, and then resolves on disk to admin/secret.lua. The result is an unauthenticated bypass of the /admin, /repo, and /data authorization boundary, enabling read (and, for Lua files, execution) of protected content. The permission system is active in the default configuration. This issue has been patched in version 1.17.10.","score":9.4,"severity":"critical","published":"2026-11-12T19:39:10.279Z","modified":"2026-11-13T00:25:32.382Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"xyproto","name":"algernon","platforms":[],"versions":[{"version":"< 1.17.10","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-68548"}],"remediation":[],"references":["https://github.com/xyproto/algernon/security/advisories/GHSA-vm84-8c4p-64hx","https://github.com/xyproto/algernon/releases/tag/v1.17.10"],"sources":[{"name":"CVE","id":"CVE-2026-68548","modified":"2026-11-13T00:25:32.382Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-68548"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","score":9.4}],"sourceAffected":[],"observedAt":"2026-11-13T00:58:11.962Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T03:20:35.359Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-13T01:10:37.350Z","attemptedAt":"2026-11-13T01:10:37.350Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-13T01:10:37.639Z","attemptedAt":"2026-11-13T01:10:37.639Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-13T01:10:37.772Z","attemptedAt":"2026-11-13T01:10:37.772Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-13T01:10:37.322Z","attemptedAt":"2026-11-13T01:10:37.322Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-68548","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68548","modified":"2026-11-12T20:18:51.520","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","checkedAt":"2026-11-13T01:10:37.350Z"},{"source":"ENISA EUVD","id":"EUVD-2026-124638","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-124638","modified":"Nov 13, 2026, 12:25:32 AM","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","checkedAt":"2026-11-13T01:10:37.772Z"}],"aiSummary":{"text":"Algernon web server versions prior to 1.17.10 have a case-sensitivity weakness, allowing unauthenticated requests to bypass /admin, /repo, and /data permission checks on case-insensitive filesystems. This enables read and potential execution of protected content. The issue is patched in version 1.17.10.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-13T01:01:07.712Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-68548"}]}}