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Actualizer Uses OpenSSL's "-passwd" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i

Type: advisorySources: OSV

Actualizer is a single shell script solution to allow developers and embedded engineers to create Debian operating systems (OS). Prior to version 1.2.0, Actualizer uses OpenSSL's "-passwd" function, which uses SHA512 instead of a more suitable password hasher like Yescript/Argon2i. All Actualizer users building a full Debian Operating System are affected. Users should upgrade to version 1.2.0 of Actualizer. Existing OS deployment requires manual password changes against the alpha and root accounts. The change will deploy's Debian's yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and "Alpha" users' passwords.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-47276
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 19:49 UTC · Revision 1

Source evidence

Actualizer Uses OpenSSL's "-passwd" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i

core-osv · Original source

Published 13 May 2025, 15:34 UTC

Actualizer is a single shell script solution to allow developers and embedded engineers to create Debian operating systems (OS). Prior to version 1.2.0, Actualizer uses OpenSSL's "-passwd" function, which uses SHA512 instead of a more suitable password hasher like Yescript/Argon2i. All Actualizer users building a full Debian Operating System are affected. Users should upgrade to version 1.2.0 of Actualizer. Existing OS deployment requires manual password changes against the alpha and root accounts. The change will deploy's Debian's yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and "Alpha" users' passwords.

osv:CVE-2025-47276
Complete source record
{
  "id": "834a70fdde07fb3856144c53919b57f6d82eca347d6e79050e3590b5689064c3",
  "url": "https://osv.dev/vulnerability/CVE-2025-47276",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Actualizer Uses OpenSSL's \"-passwd\" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i",
    "summary": "Actualizer is a single shell script solution to allow developers and embedded engineers to create Debian operating systems (OS). Prior to version 1.2.0, Actualizer uses OpenSSL's \"-passwd\" function, which uses SHA512 instead of a more suitable password hasher like Yescript/Argon2i. All Actualizer users building a full Debian Operating System are affected. Users should upgrade to version 1.2.0 of Actualizer. Existing OS deployment requires manual password changes against the alpha and root accounts. The change will deploy's Debian's yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and \"Alpha\" users' passwords.",
    "evidence": "osv:CVE-2025-47276",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-47276",
      "aliases": [
        "CVE-2025-47276",
        "GHSA-v626-chv9-v9qr"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ChewKeanHo/software-actualizer",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2aadf9873f2d082fa847e6049488b007424260f6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.2.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.1.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-47276.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.685914268Z",
      "provider": "osv",
      "references": [
        "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html",
        "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0",
        "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47276.json",
        "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-47276",
        "https://github.com/ChewKeanHo/Actualizer/issues/1",
        "https://github.com/openssl/openssl/issues/19340",
        "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-328"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47276.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-47276",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520257,
  "published_at": "2025-05-13T15:34:28.801+00:00"
}