CVE-2026-13576 (GCVE-0-2026-13576)
Vulnerability from cvelistv5
Published
2026-10-30 13:09
Modified
2026-10-30 13:09
Severity ?
CWE
  • CWE-916 - Use of Password Hash With Insufficient Computational Effort
  • CWE-759 - Use of a One-Way Hash without a Salt
Summary
CallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes. Passwords are hashed with hmac_sha1_sum() from Mojo::Util with no key, a single fast SHA-1 HMAC. There is no salt, so equal passwords give equal hashes, and no work factor slows down guessing. An attacker who obtains the user table can recover passwords by fast offline guessing.
Impacted products
Vendor Product Version
Version: 0   < 0.62.0
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "CallBackery"
          ],
          "packageName": "CallBackery",
          "packageURL": "pkg:cpan/CallBackery",
          "programFiles": [
            "lib/CallBackery/User.pm",
            "lib/CallBackery/GuiPlugin/UserForm.pm"
          ],
          "programRoutines": [
            {
              "name": "CallBackery::User::login"
            },
            {
              "name": "CallBackery::GuiPlugin::UserForm::actionCfg"
            }
          ],
          "repo": "https://github.com/oetiker/callbackery",
          "versions": [
            {
              "lessThan": "0.62.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "CallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes.\n\nPasswords are hashed with hmac_sha1_sum() from Mojo::Util with no key, a single fast SHA-1 HMAC. There is no salt, so equal passwords give equal hashes, and no work factor slows down guessing.\n\nAn attacker who obtains the user table can recover passwords by fast offline guessing."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-916",
              "description": "CWE-916 Use of Password Hash With Insufficient Computational Effort",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-759",
              "description": "CWE-759 Use of a One-Way Hash without a Salt",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T13:09:47.702Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to CallBackery 0.62.0 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-13576",
    "datePublished": "2026-10-30T13:09:47.702Z",
    "dateReserved": "2026-06-28T20:49:43.680Z",
    "dateUpdated": "2026-10-30T13:09:47.702Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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