{"id":"CVE-2026-4528","state":"PUBLISHED","title":"trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery","description":"A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.","publishedAt":"2026-03-21T22:02:11.155Z","updatedAt":"2026-03-23T16:25:13.688Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["trueleaf ApiFlow"],"affected":[{"vendor":"trueleaf","product":"ApiFlow","versions":[{"version":"0.9.7","status":"affected"}],"modules":["URL Validation Handler"]}],"references":["https://vuldb.com/?id.352316","https://vuldb.com/?ctiid.352316","https://vuldb.com/?submit.784197","https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-ApiFlow-329ea92a3c4180489df2fa2702078fe5"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/4xxx/CVE-2026-4528.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4528","state":"PUBLISHED","datePublished":"2026-03-21T22:02:11.155Z","dateUpdated":"2026-03-23T16:25:13.688Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-21T07:36:25.895Z"},"containers":{"cna":{"title":"trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery","descriptions":[{"lang":"en","value":"A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized."}],"affected":[{"vendor":"trueleaf","product":"ApiFlow","versions":[{"version":"0.9.7","status":"affected"}],"modules":["URL Validation Handler"]}],"references":[{"url":"https://vuldb.com/?id.352316","name":"VDB-352316 | trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.352316","name":"VDB-352316 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.784197","name":"Submit #784197 | trueleaf apiflow ≤0.9.7 Server-Side Request Forgery","tags":["third-party-advisory"]},{"url":"https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-ApiFlow-329ea92a3c4180489df2fa2702078fe5","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":7.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","type":"CWE","lang":"en","description":"Server-Side Request Forgery"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-03-21T22:02:11.155Z"},"timeline":[{"time":"2026-03-21T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-21T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-21T08:41:30.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"din4 (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-23T16:24:55.302533Z","id":"CVE-2026-4528","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-23T16:25:13.688Z"}}]}}}