CVE-2026-48961

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48961", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-26T18:09:32.365Z", "datePublished": "2026-05-27T02:34:52.228Z", "dateUpdated": "2026-05-29T15:52:06.965Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "IO-Compress", "product": "IO::Compress", "programFiles": ["bin/zipdetails"], "programRoutines": [{"name": "main::decode_ux"}, {"name": "main::decodeLitteEndian"}], "repo": "https://github.com/pmqs/IO-Compress", "vendor": "PMQS", "versions": [{"lessThan": "2.220", "status": "affected", "version": "2.207", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID.\n\nWhen decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255.\n\nLibrary callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-755", "description": "CWE-755 Improper Handling of Exceptional Conditions", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-27T02:47:42.472Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/pmqs/IO-Compress/commit/33c89d03d6e746ed2ead4f2f6570d47864c61bc7.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to IO-Compress 2.220 or later."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-05-14T00:00:00.000Z", "value": "Issue reported."}, {"lang": "en", "time": "2026-05-16T00:00:00.000Z", "value": "Version 2.220 released."}], "title": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/27/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-27T07:24:57.566Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-29T15:51:41.495552Z", "id": "CVE-2026-48961", "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": "2026-05-29T15:52:06.965Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/27/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-27T07:24:57.566Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-48961", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-29T15:51:41.495552Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T15:52:00.503Z"}}], "cna": {"title": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/pmqs/IO-Compress", "vendor": "PMQS", "product": "IO::Compress", "versions": [{"status": "affected", "version": "2.207", "lessThan": "2.220", "versionType": "custom"}], "packageName": "IO-Compress", "programFiles": ["bin/zipdetails"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "main::decode_ux"}, {"name": "main::decodeLitteEndian"}]}], "timeline": [{"lang": "en", "time": "2026-05-14T00:00:00.000Z", "value": "Issue reported."}, {"lang": "en", "time": "2026-05-16T00:00:00.000Z", "value": "Version 2.220 released."}], "solutions": [{"lang": "en", "value": "Upgrade to IO-Compress 2.220 or later."}], "references": [{"url": "https://github.com/pmqs/IO-Compress/commit/33c89d03d6e746ed2ead4f2f6570d47864c61bc7.patch", "tags": ["patch"]}, {"url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes", "tags": ["release-notes"]}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID.\n\nWhen decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255.\n\nLibrary callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-755", "description": "CWE-755 Improper Handling of Exceptional Conditions"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-27T02:47:42.472Z"}}}, "cveMetadata": {"cveId": "CVE-2026-48961", "state": "PUBLISHED", "dateUpdated": "2026-05-29T15:52:06.965Z", "dateReserved": "2026-05-26T18:09:32.365Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-05-27T02:34:52.228Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "IO-Compress", "product": "IO::Compress", "programFiles": ["bin/zipdetails"], "programRoutines": [{"name": "main::decode_ux"}, {"name": "main::decodeLitteEndian"}], "repo": "https://github.com/pmqs/IO-Compress", "vendor": "PMQS", "versions": [{"lessThan": "2.220", "status": "affected", "version": "2.207", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID.\n\nWhen decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255.\n\nLibrary callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool."}, {"lang": "es", "value": "Las versiones de IO::Compress desde la 2.207 anteriores a la 2.220 para Perl distribuyen una herramienta CLI zipdetails que falla con subrutina indefinida en el campo extra Unix de Info-ZIP con UID o GID de 8 bytes.\n\nCuando decode_ux() en bin/zipdetails maneja un campo extra Unix de Info-ZIP (etiqueta 0x7875) con el tama\u00f1o de UID o el tama\u00f1o de GID establecido en 8, lo que hace que zipdetails decodifique un valor UID o GID de 8 bytes, se despacha a trav\u00e9s de decodeLitteEndian(), que llama a una funci\u00f3n auxiliar mal nombrada unpackValueQ. La funci\u00f3n real definida en el mismo archivo es unpackValue_Q (con guion bajo); la llamada genera 'Undefined subroutine &main::unpackValueQ' y el script sale con estado 255.\n\nLos llamadores de biblioteca de IO::Compress y IO::Uncompress no se ven afectados; el defecto est\u00e1 en la herramienta CLI incluida."}], "id": "CVE-2026-48961", "lastModified": "2026-07-24T12:10:00.210", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48961", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-29T15:51:41.495552Z", "version": "2.0.3"}}]}, "published": "2026-05-27T04:16:31.210", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/pmqs/IO-Compress/commit/33c89d03d6e746ed2ead4f2f6570d47864c61bc7.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/05/27/3"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-755"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[2.207,2.220)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "IO::Compress", "source": "cna", "vendor": "PMQS"}, "product": "compress", "vendor": "pmqs"}], "created": "2026-05-27T04:30:16.103173+00:00", "updated": "2026-05-29T18:45:05.575520+00:00", "vendors": ["pmqs", "pmqs$PRODUCT$compress"]}