CVE-2026-13082 (GCVE-0-2026-13082)

Vulnerability from cvelistv5 – Published: 2026-07-17 12:54 – Updated: 2026-07-17 17:29
VLAI
Title
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets
Summary
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
  • CWE-804 - Guessable CAPTCHA
Assigner
References
Impacted products
Vendor Product Version
BURAK GD::SecurityImage Affected: 0 , ≤ 1.75 (custom)
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              "attackVector": "NETWORK",
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              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
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      "source": {
        "discovery": "UNKNOWN"
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          "time": "2026-03-10T00:00:00.000Z",
          "value": "The git repository was archived."
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        }
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    "state": "PUBLISHED"
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    "redhat_vex": {
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      "cve": "CVE-2026-13082",
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      "initial_release_date": "2026-07-17T12:54:07.177000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "perl-GD-SecurityImage: the rand function is used to generate secrets",
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      "version": "3"
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.