{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-12205",
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "state": "PUBLISHED",
        "assignerShortName": "CPANSec",
        "dateReserved": "2026-06-14T12:07:30.610Z",
        "datePublished": "2026-06-15T21:57:18.317Z",
        "dateUpdated": "2026-06-16T16:13:32.533Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://cpan.org/modules",
                    "defaultStatus": "unaffected",
                    "packageName": "Crypt-DSA",
                    "product": "Crypt::DSA",
                    "programFiles": [
                        "lib/Crypt/DSA.pm"
                    ],
                    "programRoutines": [
                        {
                            "name": "Crypt::DSA::sign"
                        }
                    ],
                    "repo": "https://github.com/perl-Crypt-OpenPGP/Crypt-DSA",
                    "vendor": "TIMLEGGE",
                    "versions": [
                        {
                            "lessThan": "1.21",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Richard Kettlewell"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery.\n\nCrypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it.\n\nThe first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical \"r\".\n\nKeys used to sign more than once with an affected version should be considered compromised."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-323",
                            "description": "CWE-323 Reusing a Nonce, Key Pair in Encryption",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
                "shortName": "CPANSec",
                "dateUpdated": "2026-06-15T21:57:18.317Z"
            },
            "references": [
                {
                    "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/source/lib/Crypt/DSA.pm#L47"
                },
                {
                    "tags": [
                        "release-notes"
                    ],
                    "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.21/changes"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to version 1.21\n\nRevoke any keys that may have been compromised.\n\nCrypt::DSA was deprecated in version 1.20. You should migrate to another solution."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-05-16T00:00:00.000Z",
                    "value": "Maintainer contacted"
                },
                {
                    "lang": "en",
                    "time": "2026-06-13T00:00:00.000Z",
                    "value": "Maintainer and CPANSec contacted"
                },
                {
                    "lang": "en",
                    "time": "2026-06-14T00:00:00.000Z",
                    "value": "Fixed version released"
                }
            ],
            "title": "Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery",
            "x_generator": {
                "engine": "cpansec-cna-tool 0.1"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/06/15/4"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2026-06-15T22:44:28.639Z"
                }
            },
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 9.1,
                            "attackVector": "NETWORK",
                            "baseSeverity": "CRITICAL",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-16T16:13:28.769417Z",
                                "id": "CVE-2026-12205",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-16T16:13:32.533Z"
                }
            }
        ]
    }
}