CVE-2026-59139

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59139", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-07-02T16:24:17.912Z", "datePublished": "2026-07-21T19:02:43.033Z", "dateUpdated": "2026-07-22T19:16:27.039Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Data-ReqRep-Shared", "product": "Data::ReqRep::Shared", "programFiles": ["reqrep.h"], "programRoutines": [{"name": "reqrep_recv_locked"}], "repo": "https://github.com/vividsnow/perl5-data-reqrep-shared", "vendor": "EGOR", "versions": [{"lessThan": "0.05", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.\n\nThe attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap).\n\nA local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-07-21T19:02:43.033Z"}, "references": [{"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to Data::ReqRep::Shared 0.05 or later, which bounds the arena offset and length against the arena capacity before the copy."}], "source": {"discovery": "UNKNOWN"}, "title": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked", "workarounds": [{"lang": "en", "value": "For deployments that cannot upgrade to 0.05, place the backing file in a directory writable only by the owning user, so a local peer cannot tamper with the segment contents the read path trusts."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"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:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-07-22T19:16:20.997158Z", "id": "CVE-2026-59139", "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": "2026-07-22T19:16:27.039Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-59139", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-22T19:16:20.997158Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-22T19:16:05.832Z"}}], "cna": {"title": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/vividsnow/perl5-data-reqrep-shared", "vendor": "EGOR", "product": "Data::ReqRep::Shared", "versions": [{"status": "affected", "version": "0", "lessThan": "0.05", "versionType": "custom"}], "packageName": "Data-ReqRep-Shared", "programFiles": ["reqrep.h"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "reqrep_recv_locked"}]}], "solutions": [{"lang": "en", "value": "Upgrade to Data::ReqRep::Shared 0.05 or later, which bounds the arena offset and length against the arena capacity before the copy."}], "references": [{"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"}, {"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes", "tags": ["release-notes"]}], "workarounds": [{"lang": "en", "value": "For deployments that cannot upgrade to 0.05, place the backing file in a directory writable only by the owning user, so a local peer cannot tamper with the segment contents the read path trusts."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.\n\nThe attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap).\n\nA local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-07-21T19:02:43.033Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59139", "state": "PUBLISHED", "dateUpdated": "2026-07-22T19:16:27.039Z", "dateReserved": "2026-07-02T16:24:17.912Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-07-21T19:02:43.033Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Data-ReqRep-Shared", "product": "Data::ReqRep::Shared", "programFiles": ["reqrep.h"], "programRoutines": [{"name": "reqrep_recv_locked"}], "repo": "https://github.com/vividsnow/perl5-data-reqrep-shared", "vendor": "EGOR", "versions": [{"lessThan": "0.05", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.\n\nThe attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap).\n\nA local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process."}, {"lang": "es", "value": "Las versiones de Data::ReqRep::Shared anteriores a 0.05 para Perl permiten una lectura fuera de l\u00edmites a trav\u00e9s de un desplazamiento y una longitud de arena no validados en reqrep_recv_locked.\n\nEl validador en tiempo de adjunci\u00f3n reqrep_validate_header comprueba los escalares del encabezado y la disposici\u00f3n de la regi\u00f3n contra el tama\u00f1o del archivo, pero no valida el contenido del array en el que luego conf\u00eda. reqrep_recv_locked realiza memcpy(copy_buf, req_arena + arena_off, len) con arena_off y len le\u00eddos directamente del segmento mapeado en memoria y nunca acotados contra la capacidad de la arena (req_arena_cap).\n\nUn par local que puede escribir el archivo de respaldo puede dejar el encabezado v\u00e1lido mientras envenena el desplazamiento y la longitud de una ranura de solicitud, de modo que recibir la solicitud copia un desplazamiento y una longitud controlados por el archivo fuera de la arena, leyendo memoria adyacente o bloqueando el proceso."}], "id": "CVE-2026-59139", "lastModified": "2026-10-24T19:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59139", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-22T19:16:20.997158Z", "version": "2.0.3"}}]}, "published": "2026-07-21T19:17:11.467", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.05)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Data::ReqRep::Shared", "source": "cna", "vendor": "EGOR"}, "product": "data::reqrep::shared", "vendor": "egor"}], "created": "2026-07-23T21:13:19.256240+00:00", "updated": "2026-08-04T05:45:03.550307+00:00", "vendors": ["egor", "egor$PRODUCT$data::reqrep::shared"]}