{"id":"CVE-2026-72544","aliases":["EUVD-2026-56014","GHSA-7j6v-hchx-rmq3"],"status":"published","title":"OpenSignLabs OpenSign - Insufficient Verification of Data Authenticity","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00253,"percentile":0.16909,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345"],"published":"2026-08-11T11:09:00Z","modified":"2026-10-28T02:30:48Z","products":[{"vendor":"opensignlabs","product":"opensign"}],"references":[{"url":"https://github.com/OpenSignLabs/OpenSign","tags":["package"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72544","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7j6v-hchx-rmq3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72544.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-72544","title":"OpenSignLabs OpenSign - Insufficient Verification of Data Authenticity","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","status":"published","published":"2026-08-11T11:09:00.608Z","modified":"2026-08-11T12:24:54.943Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:19:51.663093Z"}],"euvd":[{"id":"EUVD-2026-56014","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","status":"published","published":"2026-08-11T11:09:00Z","modified":"2026-08-11T12:24:54Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:02:00.294626Z"}],"ghsa":[{"id":"GHSA-7j6v-hchx-rmq3","title":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows...","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","status":"published","published":"2026-08-11T12:30:24Z","modified":"2026-08-11T12:30:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T15:10:17.025827Z"}],"nvd":[{"id":"CVE-2026-72544","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","status":"published","published":"2026-08-11T12:17:39.847Z","modified":"2026-10-24T15:10:00.19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:12:36.499002Z"}],"osv":[{"id":"CVE-2026-72544","title":"OpenSignLabs OpenSign - Insufficient Verification of Data Authenticity","description":"An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without authentication, allowing fabrication of arbitrary audit log entries. An attacker can tamper with the legal audit trail of any signed document, undermining non-repudiation.","status":"published","published":"2026-08-11T11:09:00.608Z","modified":"2026-10-28T02:30:48.572944931Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T15:45:15.88521Z"}]}}