CVE-2026-5084

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5084", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-03-28T19:18:57.110Z", "datePublished": "2026-05-11T06:37:19.384Z", "dateUpdated": "2026-08-02T09:33:38.874Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "WebDyne", "product": "WebDyne::Session", "programFiles": ["lib/WebDyne/Session.pm"], "programRoutines": [{"name": "WebDyne::Session::handler"}], "repo": "https://github.com/aspeer/WebDyne", "vendor": "ASPEER", "versions": [{"lessThan": "3.003_704", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely.\n\nThe session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest.\n\nThe rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes.\n\nPredictable session ids could allow an attacker to gain access to systems.\n\nNote that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne."}], "impacts": [{"capecId": "CAPEC-102", "descriptions": [{"lang": "en", "value": "CAPEC-102 Session Sidejacking"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-340", "description": "CWE-340 Generation of Predictable Numbers or Identifiers", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-338", "description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-08-02T09:33:38.874Z"}, "references": [{"url": "https://metacpan.org/release/ASPEER/WebDyne-2.075/source/lib/WebDyne/Session.pm#L120"}, {"tags": ["patch"], "url": "https://github.com/aspeer/WebDyne/commit/7a3f949dc24e62a276eb0db629db64aca356e954.patch"}, {"url": "https://webdyne.org"}, {"tags": ["technical-description"], "url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"}], "solutions": [{"lang": "en", "value": "Upgrade to version 3.003_704 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-11T16:24:24.075813Z", "id": "CVE-2026-5084", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T16:24:27.484Z"}}, {"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/11/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-11T16:53:23.622Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/11/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-11T16:53:23.622Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-5084", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-11T16:24:24.075813Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T16:24:16.264Z"}}], "cna": {"title": "WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely", "source": {"discovery": "UNKNOWN"}, "impacts": [{"capecId": "CAPEC-102", "descriptions": [{"lang": "en", "value": "CAPEC-102 Session Sidejacking"}]}], "affected": [{"repo": "https://github.com/aspeer/WebDyne", "vendor": "ASPEER", "product": "WebDyne::Session", "versions": [{"status": "affected", "version": "0", "lessThan": "3.003_704", "versionType": "custom"}], "packageName": "WebDyne", "programFiles": ["lib/WebDyne/Session.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "WebDyne::Session::handler"}]}], "solutions": [{"lang": "en", "value": "Upgrade to version 3.003_704 or later."}], "references": [{"url": "https://metacpan.org/release/ASPEER/WebDyne-2.075/source/lib/WebDyne/Session.pm#L120"}, {"url": "https://github.com/aspeer/WebDyne/commit/7a3f949dc24e62a276eb0db629db64aca356e954.patch", "tags": ["patch"]}, {"url": "https://webdyne.org"}, {"url": "https://security.metacpan.org/docs/guides/random-data-for-security.html", "tags": ["technical-description"]}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely.\n\nThe session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest.\n\nThe rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes.\n\nPredictable session ids could allow an attacker to gain access to systems.\n\nNote that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-340", "description": "CWE-340 Generation of Predictable Numbers or Identifiers"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-338", "description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-08-02T09:33:38.874Z"}}}, "cveMetadata": {"cveId": "CVE-2026-5084", "state": "PUBLISHED", "dateUpdated": "2026-08-02T09:33:38.874Z", "dateReserved": "2026-03-28T19:18:57.110Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-05-11T06:37:19.384Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "WebDyne", "product": "WebDyne::Session", "programFiles": ["lib/WebDyne/Session.pm"], "programRoutines": [{"name": "WebDyne::Session::handler"}], "repo": "https://github.com/aspeer/WebDyne", "vendor": "ASPEER", "versions": [{"lessThan": "3.003_704", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely.\n\nThe session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest.\n\nThe rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes.\n\nPredictable session ids could allow an attacker to gain access to systems.\n\nNote that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne."}, {"lang": "es", "value": "Las versiones de WebDyne::Session hasta la 2.075 para Perl generan el ID de sesi\u00f3n de forma insegura.\n\nEl gestor de sesi\u00f3n genera el ID de sesi\u00f3n a partir de un hash MD5 inicializado con una llamada a la funci\u00f3n rand() incorporada. A la funci\u00f3n rand se le pasa un valor m\u00e1ximo basado en el ID del proceso, el tiempo de \u00e9poca y la direcci\u00f3n de referencia del objeto, pero esta informaci\u00f3n no tendr\u00e1 ning\u00fan efecto en la calidad general de la semilla del resumen del mensaje.\n\nLa funci\u00f3n rand se inicializa con 32 bits y es predecible. Se considera inadecuada para fines criptogr\u00e1ficos.\n\nLos ID de sesi\u00f3n predecibles podr\u00edan permitir a un atacante obtener acceso a los sistemas.\n\nTenga en cuenta que las versiones 1.042 y anteriores de WebDyne::Session parecen estar en distribuciones separadas de WebDyne."}], "id": "CVE-2026-5084", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5084", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-11T16:24:24.075813Z", "version": "2.0.3"}}]}, "published": "2026-05-11T08:16:16.210", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/aspeer/WebDyne/commit/7a3f949dc24e62a276eb0db629db64aca356e954.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/ASPEER/WebDyne-2.075/source/lib/WebDyne/Session.pm#L120"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://webdyne.org"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/05/11/3"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-338"}, {"lang": "en", "value": "CWE-340"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2.075]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WebDyne::Session", "source": "cna", "vendor": "ASPEER"}, "product": "webdyne::session", "vendor": "aspeer"}], "created": "2026-05-11T09:15:26.606137+00:00", "updated": "2026-08-04T19:15:03.925863+00:00", "vendors": ["aspeer", "aspeer$PRODUCT$webdyne::session"]}