{"id":"CVE-2026-23742","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-23742","generatedAt":"2026-10-28T03:25:41.443Z","title":"The configuration inline allows these user to create a script that is able to read the filesystem accessible to the skipper process and if the user has access to read the logs, they an read skipper secrets.","description":"Skipper is an HTTP router and reverse proxy for service composition. The default skipper configuration before 0.23.0 was -lua-sources=inline,file. The problem starts if untrusted users can create lua filters, because of -lua-sources=inline , for example through a Kubernetes Ingress resource. The configuration inline allows these user to create a script that is able to read the filesystem accessible to the skipper process and if the user has access to read the logs, they an read skipper secrets. This vulnerability is fixed in 0.23.0.","published":"2026-01-16T20:15:52.000Z","lastModified":"2026-06-17T10:22:02.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-94","CWE-250","CWE-522"],"affected":["zalando/skipper"],"epss":{"score":0.00514,"percentile":0.43508,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/zalando/skipper/commit/0b52894570773b29e2f3c571b94b4211ef8fa714","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/releases/tag/v0.23.0","tags":["Product","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/security/advisories/GHSA-cc8m-98fm-rc9g","tags":["Exploit","Mitigation","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23742","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}