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libcrypt-saltedhash-perl — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-47373

Crypt::SaltedHash versions through 0.09 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash.

Products
libcrypt-saltedhash-perl
Affected versions
0.09-1, 0.09-1.1, 0.09-1.1ubuntu0.1~esm1, 0.09-1ubuntu0.16.04.1~esm1, 0.09-1ubuntu0.18.04.1~esm1, 0.09-1ubuntu0.20.04.1~esm1, 0.09-3, 0.09-3ubuntu0.24.04.1~esm1, 0.09-3ubuntu0.25.10.1, 0.09-3ubuntu0.26.04.1~esm1, 0.11-1, 0.12-1
Fixed versions
Not specified
CVEs
CVE-2026-47373
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 03:05 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-47373

core-osv · Original source

Published 20 May 2026, 21:16 UTC

Crypt::SaltedHash versions through 0.09 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash.

osv:UBUNTU-CVE-2026-47373

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

libcrypt-saltedhash-perl

Fixed versions: Not specified

Complete source record
{
  "id": "73706f935505c69b454261f6808bfab32824756d2ee2edd9db4419ab9d827721",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-47373",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-47373",
    "summary": "Crypt::SaltedHash versions through 0.09 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash.",
    "evidence": "osv:UBUNTU-CVE-2026-47373",
    "products": [
      {
        "name": {
          "value": "libcrypt-saltedhash-perl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.09-1ubuntu0.16.04.1~esm1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libcrypt-saltedhash-perl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-1",
            "evidence": "/affected/1/versions"
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          {
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            "evidence": "/affected/1/versions"
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        },
        "prerequisites": [],
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            "evidence": "/affected/2/versions"
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      {
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          "evidence": "/affected/3/package/name"
        },
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            "evidence": "/affected/3/versions"
          },
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            "evidence": "/affected/3/versions"
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      },
      {
        "name": {
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          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
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            "value": "0.09-3",
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            "evidence": "/affected/4/versions"
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      },
      {
        "name": {
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          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
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        "affected_versions": [
          {
            "value": "0.09-3",
            "evidence": "/affected/5/versions"
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          {
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            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libcrypt-saltedhash-perl",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-3",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "0.11-1",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "0.12-1",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libcrypt-saltedhash-perl",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-3",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "0.09-3ubuntu0.26.04.1~esm1",
            "evidence": "/affected/7/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "UBUNTU-CVE-2026-47373",
      "aliases": [
        "UBUNTU-CVE-2026-47373"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
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              "events": [
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          "versions": [
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            "0.09-1ubuntu0.16.04.1~esm1"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libcrypt-saltedhash-perl",
                "binary_version": "0.09-1ubuntu0.16.04.1~esm1"
              }
            ]
          }
        },
        {
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          ],
          "package": {
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            "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl?arch=source&distro=esm-apps%2Fbionic",
            "ecosystem": "Ubuntu:Pro:18.04:LTS"
          },
          "versions": [
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            "0.09-1ubuntu0.18.04.1~esm1"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libcrypt-saltedhash-perl",
                "binary_version": "0.09-1ubuntu0.18.04.1~esm1"
              }
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          "package": {
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            "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl?arch=source&distro=esm-apps%2Ffocal",
            "ecosystem": "Ubuntu:Pro:20.04:LTS"
          },
          "versions": [
            "0.09-1",
            "0.09-1ubuntu0.20.04.1~esm1"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
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                "binary_name": "libcrypt-saltedhash-perl",
                "binary_version": "0.09-1ubuntu0.20.04.1~esm1"
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            "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl?arch=source&distro=esm-apps%2Fjammy",
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          },
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            "0.09-1.1",
            "0.09-1.1ubuntu0.1~esm1"
          ],
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libcrypt-saltedhash-perl",
                "binary_version": "0.09-1.1ubuntu0.1~esm1"
              }
            ]
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        },
        {
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          ],
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            "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl?arch=source&distro=esm-apps%2Fnoble",
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          },
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          }
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      ],
      "modified": "2026-10-17T13:00:16.477619708Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-47373"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-47373",
        "https://www.cve.org/CVERecord?id=CVE-2026-47373",
        "https://lists.security.metacpan.org/cve-announce/msg/40249915/",
        "https://github.com/robrwo/perl-Crypt-SaltedHash/commit/c07bfc5c23185b0667233d0f2e1252d81f1f027a.patch",
        "https://metacpan.org/release/RRWO/Crypt-SaltedHash-0.10/changes"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-47373",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 360413,
  "published_at": "2026-05-20T21:16:00+00:00"
}