{"id":"CVE-2026-71247","state":"PUBLISHED","title":"Documenso - Assistant Recipient Can Forge Another Signer's Signature in Sequential-Signing Documents","description":"Documenso's sign-field-with-token.ts, used by the live document-signing UI, allows a recipient with the ASSISTANT role to fetch and complete fields belonging to any later-or-equal-order, not-yet-signed recipient in the same envelope, with no restriction on field type. A newer V2 signing path (sign-envelope-field.ts) explicitly blocks assistants from completing SIGNATURE fields, and the project's own test suite comments confirm this guard is absent from the V1 path used here.","publishedAt":"2026-08-05T10:56:59.954Z","updatedAt":"2026-08-10T11:46:00.855Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","source":"TuranSec"},"assigner":"TuranSec","products":["documenso documenso"],"affected":[{"vendor":"documenso","product":"documenso","defaultStatus":"unknown","versions":[{"version":"0","status":"affected"}],"programFiles":["packages/lib/server-only/field/sign-field-with-token.ts"]}],"references":["https://github.com/documenso/documenso"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71247.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71247","state":"PUBLISHED","datePublished":"2026-08-05T10:56:59.954Z","dateUpdated":"2026-08-10T11:46:00.855Z","assignerShortName":"TuranSec","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateReserved":"2026-08-05T10:53:53.176Z"},"containers":{"cna":{"title":"Documenso - Assistant Recipient Can Forge Another Signer's Signature in Sequential-Signing Documents","descriptions":[{"lang":"en","value":"Documenso's sign-field-with-token.ts, used by the live document-signing UI, allows a recipient with the ASSISTANT role to fetch and complete fields belonging to any later-or-equal-order, not-yet-signed recipient in the same envelope, with no restriction on field type. A newer V2 signing path (sign-envelope-field.ts) explicitly blocks assistants from completing SIGNATURE fields, and the project's own test suite comments confirm this guard is absent from the V1 path used here."}],"affected":[{"vendor":"documenso","product":"documenso","defaultStatus":"unknown","versions":[{"version":"0","status":"affected"}],"programFiles":["packages/lib/server-only/field/sign-field-with-token.ts"]}],"references":[{"url":"https://github.com/documenso/documenso","tags":["third-party-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863 Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"TuranSec","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateUpdated":"2026-08-10T11:46:00.855Z"},"credits":[{"lang":"en","value":"Bobur Abdugafforov","type":"finder"}],"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T10:56:59.954Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T12:31:13.509667Z","id":"CVE-2026-71247","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-05T12:32:16.403Z"}}]}}}