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4 vulnerabilities found for Crypt::DSA by TIMLEGGE

CVE-2026-14570 (GCVE-0-2026-14570)
Vulnerability from cvelistv5
Published
2026-07-05 01:30
Modified
2026-07-06 13:42
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-330 - Use of Insufficiently Random Values
Summary
Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key recovery. "Crypt::DSA::Util::makerandom forces the high bit of every value it returns to obtain an exactly N-bit integer for prime search. The signing nonce and the private key are drawn from makerandom. Because the high bit is always set, the result is not uniform: its top bit is fixed, producing insecure values." An attacker who collects a modest number of signatures under an affected key, together with the public key, can recover the private key with a lattice attack. Keys used to sign with an affected version should be considered compromised and new keys should be generated.
References
Impacted products
Vendor Product Version
TIMLEGGE Crypt::DSA Version: 0   < 1.22
 Create a notification for this product.
Show details on NVD website

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CVE-2026-12205 (GCVE-0-2026-12205)
Vulnerability from cvelistv5
Published
2026-06-15 21:57
Modified
2026-06-16 16:13
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-323 - Reusing a Nonce, Key Pair in Encryption
Summary
Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery. Crypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it. The first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical "r". Keys used to sign more than once with an affected version should be considered compromised.
References
Impacted products
Vendor Product Version
TIMLEGGE Crypt::DSA Version: 0   < 1.21
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2026-8704 (GCVE-0-2026-8704)
Vulnerability from cvelistv5
Published
2026-05-15 22:18
Modified
2026-05-18 15:06
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-552 - Files or Directories Accessible to External Parties
Summary
Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.
References
Impacted products
Vendor Product Version
TIMLEGGE Crypt::DSA Version: 0   <
Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2026-8700 (GCVE-0-2026-8700)
Vulnerability from cvelistv5
Published
2026-05-15 22:10
Modified
2026-05-18 15:04
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
Summary
Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
References
Impacted products
Vendor Product Version
TIMLEGGE Crypt::DSA Version: 0   < 1.20
 Create a notification for this product.
Show details on NVD website

To clipboard 

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        {
          "lang": "en",
          "value": "Upgrade to version 1.20 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "CPANSec identified issue"
        },
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "Author was notified"
        },
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "Version 1.20 released."
        }
      ],
      "title": "Crypt::DSA versions before 1.20 for Perl generate seeds using rand",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-8700",
    "datePublished": "2026-05-15T22:10:52.242Z",
    "dateReserved": "2026-05-15T17:20:11.254Z",
    "dateUpdated": "2026-05-18T15:04:20.918Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}