{"id":"CVE-2018-15796","aliases":["EUVD-2018-7658","GHSA-xx5w-cqxh-w2m4"],"status":"published","title":"Signing Key Extraction in Bits Service Release","description":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.00712,"percentile":0.53838,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2018-11-09T22:00:00Z","modified":"2026-06-17T01:43:07Z","products":[{"vendor":"cloud foundry","product":"bits-service-release"},{"vendor":"pivotal_software","product":"bits_service"}],"references":[{"url":"https://www.cloudfoundry.org/blog/cve-2018-15796","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15796"},{"url":"https://github.com/advisories/GHSA-xx5w-cqxh-w2m4"}],"sources":{"cve":[{"id":"CVE-2018-15796","title":"Signing Key Extraction in Bits Service Release","description":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.","status":"published","published":"2018-11-09T22:00:00Z","modified":"2024-09-16T19:09:08.154Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:03.288698Z"}],"euvd":[{"id":"EUVD-2018-7658","description":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.","status":"published","published":"2018-11-09T22:00:00Z","modified":"2024-09-16T19:09:08Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:55:26.31684Z"}],"ghsa":[{"id":"GHSA-xx5w-cqxh-w2m4","title":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm...","description":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.","status":"published","published":"2022-05-13T01:19:12Z","modified":"2023-02-01T05:05:46Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:50:16.912878Z"}],"nvd":[{"id":"CVE-2018-15796","description":"Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.","status":"published","published":"2018-11-09T22:29:00.187Z","modified":"2026-06-17T01:43:07.127Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:04:47.196456Z"}]}}