{"id":"CVE-2026-115720","state":"PUBLISHED","title":"Frappe Builder before 1.36.1 SSRF Guard Bypass via HTTP Redirect","description":"Frappe Builder before 1.36.1 contains a server-side request forgery vulnerability in builder/api.py where the assert_not_private_url() guard validates only the initial hostname before callers invoke requests.get(url) with default redirect-following and no IP pinning, allowing an attacker-supplied public URL to HTTP-redirect to internal or link-local addresses the guard never validated. An authenticated attacker can call the convert_to_webp endpoint, which lacks a permission decorator, with a URL that redirects to internal targets such as cloud metadata services to perform SSRF, internal port scanning, or trigger a request-hang denial of service due to the missing timeout.","publishedAt":"2026-10-26T12:02:25.906Z","updatedAt":"2026-10-26T19:48:35.644Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["frappe builder"],"affected":[{"vendor":"frappe","product":"builder","packageURL":"pkg:github/frappe/builder","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.36.1","versionType":"semver"}],"repo":"https://github.com/frappe/builder"}],"references":["https://github.com/frappe/builder/releases/tag/v1.36.1","https://github.com/frappe/builder/security/advisories/GHSA-hvrf-fhv3-3v7p","https://www.vulncheck.com/advisories/frappe-builder-before-ssrf-guard-bypass-via-http-redirect"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/115xxx/CVE-2026-115720.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115720","state":"PUBLISHED","datePublished":"2026-10-26T12:02:25.906Z","dateUpdated":"2026-10-26T19:48:35.644Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-23T11:14:36.357Z"},"containers":{"cna":{"title":"Frappe Builder before 1.36.1 SSRF Guard Bypass via HTTP Redirect","descriptions":[{"lang":"en","value":"Frappe Builder before 1.36.1 contains a server-side request forgery vulnerability in builder/api.py where the assert_not_private_url() guard validates only the initial hostname before callers invoke requests.get(url) with default redirect-following and no IP pinning, allowing an attacker-supplied public URL to HTTP-redirect to internal or link-local addresses the guard never validated. An authenticated attacker can call the convert_to_webp endpoint, which lacks a permission decorator, with a URL that redirects to internal targets such as cloud metadata services to perform SSRF, internal port scanning, or trigger a request-hang denial of service due to the missing timeout."}],"affected":[{"vendor":"frappe","product":"builder","packageURL":"pkg:github/frappe/builder","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.36.1","versionType":"semver"}],"repo":"https://github.com/frappe/builder"}],"references":[{"url":"https://github.com/frappe/builder/releases/tag/v1.36.1","name":"Vendor Patch","tags":["patch"]},{"url":"https://github.com/frappe/builder/security/advisories/GHSA-hvrf-fhv3-3v7p","name":"Vendor Advisory","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/frappe-builder-before-ssrf-guard-bypass-via-http-redirect","name":"VulnCheck Advisory: Frappe Builder before 1.36.1 SSRF Guard Bypass via HTTP Redirect","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","version":"3.1","baseSeverity":"MEDIUM","baseScore":5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-26T12:02:25.906Z"},"tags":["x_open-source"],"datePublic":"2026-10-26T00:00:00.000Z","cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:frappe:builder:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.36.1"}]}]}],"credits":[{"lang":"en","value":"Komiljon Ayubov","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-115720","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-26T19:30:42.646409Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-26T19:48:35.644Z"}}]}}}