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CVE-2026-5091

Status: DeferredMedium (5.1)—

Catalyst::Plugin::Authentication versions through 0.10024 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 or password.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Perl — Catalyst Plugin AuthenticationAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-5091",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5091",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-22T14:13:45.514337Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.4
      }
    ]
  },
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "repo": "https://github.com/perl-catalyst/Catalyst-Plugin-Authentication",
          "vendor": "JJNAPIORK",
          "product": "Catalyst::Plugin::Authentication",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "0.10024"
            }
          ],
          "packageName": "Catalyst-Plugin-Authentication",
          "programFiles": [
            "lib/Catalyst/Authentication/Credential/Password.pm"
          ],
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "Catalyst::Authentication::Credential::Password::check_password"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-21T22:16:48.530",
  "references": [
    {
      "url": "https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/ETHER/Catalyst-Plugin-Authentication-0.10_025/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/05/21/19",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "description": [
        {
          "lang": "en",
          "value": "CWE-208"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Catalyst::Plugin::Authentication versions through 0.10024 for Perl  is susceptible to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password."
    },
    {
      "lang": "es",
      "value": "Las versiones de Catalyst::Plugin::Authentication hasta la 0.10024 para Perl son susceptibles a ataques de temporización.\n\nEstas versiones usan la comparación eq integrada de Perl. Discrepancias en la temporización podrían usarse para adivinar el hash o la contraseña subyacentes."
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
}