{"id":"CVE-2020-26172","aliases":["EUVD-2020-18797","GHSA-jj37-qmmg-fmgp"],"status":"published","title":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows...","description":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker to reuse the token when a session is active. The JWT token does not contain an expiration timestamp.","severity":{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0066,"percentile":0.52014,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-294"],"published":"2020-12-18T09:27:50Z","modified":"2026-06-17T03:07:45Z","products":[{"vendor":"tangro","product":"business_workflow"}],"references":[{"url":"https://www.tangro.de/","tags":["x_refsource_MISC","x_transferred","Product"]},{"url":"https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26172"},{"url":"https://github.com/advisories/GHSA-jj37-qmmg-fmgp"}],"sources":{"cve":[{"id":"CVE-2020-26172","description":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker to reuse the token when a session is active. The JWT token does not contain an expiration timestamp.","status":"published","published":"2020-12-18T09:27:50Z","modified":"2024-08-04T15:49:07.166Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2020-18797","description":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker to reuse the token when a session is active. The JWT token does not contain an expiration timestamp.","status":"published","published":"2020-12-18T09:27:50Z","modified":"2024-08-04T15:49:07Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"medium"}],"updated_at":"2026-11-03T03:07:15.778249Z"}],"ghsa":[{"id":"GHSA-jj37-qmmg-fmgp","title":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows...","description":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker to reuse the token when a session is active. The JWT token does not contain an expiration timestamp.","status":"published","published":"2022-05-24T17:36:53Z","modified":"2023-01-29T05:05:46Z","cwes":["CWE-294"],"updated_at":"2026-11-02T14:45:52.34362Z"}],"nvd":[{"id":"CVE-2020-26172","description":"Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker to reuse the token when a session is active. The JWT token does not contain an expiration timestamp.","status":"published","published":"2020-12-18T10:15:12.71Z","modified":"2026-06-17T03:07:45.09Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}