CVE-2026-110756

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110756", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-10-14T17:07:07.806Z", "datePublished": "2026-10-16T22:07:37.437Z", "dateUpdated": "2026-10-20T18:27:42.479Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Text::CSV_XS"], "packageName": "Text-CSV_XS", "packageURL": "pkg:cpan/Text-CSV_XS", "programFiles": ["CSV_XS.xs"], "programRoutines": [{"name": "Text::CSV_XS::print"}], "repo": "https://github.com/cpan-authors/Text-CSV_XS", "versions": [{"lessThan": "1.65", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print.\n\nWhen a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected.\n\nThe next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-116", "description": "CWE-116 Improper Encoding or Escaping of Output", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-10-16T22:07:37.437Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/cpan-authors/Text-CSV_XS/commit/0610a8d81262ae6f1ac82a88d73c8a471f38af19.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to Text-CSV_XS 1.65 or later."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-10-14T00:00:00.000Z", "value": "Fix committed to upstream repository."}, {"lang": "en", "time": "2026-10-15T00:00:00.000Z", "value": "Version 1.65 released with fix."}], "title": "Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-10-20T18:27:23.638819Z", "id": "CVE-2026-110756", "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": "2026-10-20T18:27:42.479Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-110756", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-20T18:27:23.638819Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-20T18:26:15.379Z"}}], "cna": {"title": "Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/cpan-authors/Text-CSV_XS", "modules": ["Text::CSV_XS"], "versions": [{"status": "affected", "version": "0", "lessThan": "1.65", "versionType": "custom"}], "packageURL": "pkg:cpan/Text-CSV_XS", "packageName": "Text-CSV_XS", "programFiles": ["CSV_XS.xs"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "Text::CSV_XS::print"}]}], "timeline": [{"lang": "en", "time": "2026-10-14T00:00:00.000Z", "value": "Fix committed to upstream repository."}, {"lang": "en", "time": "2026-10-15T00:00:00.000Z", "value": "Version 1.65 released with fix."}], "solutions": [{"lang": "en", "value": "Upgrade to Text-CSV_XS 1.65 or later."}], "references": [{"url": "https://github.com/cpan-authors/Text-CSV_XS/commit/0610a8d81262ae6f1ac82a88d73c8a471f38af19.patch", "tags": ["patch"]}, {"url": "https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes", "tags": ["release-notes"]}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print.\n\nWhen a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected.\n\nThe next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-116", "description": "CWE-116 Improper Encoding or Escaping of Output"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-10-16T22:07:37.437Z"}}}, "cveMetadata": {"cveId": "CVE-2026-110756", "state": "PUBLISHED", "dateUpdated": "2026-10-20T18:27:42.479Z", "dateReserved": "2026-10-14T17:07:07.806Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-10-16T22:07:37.437Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Text::CSV_XS"], "packageName": "Text-CSV_XS", "packageURL": "pkg:cpan/Text-CSV_XS", "programFiles": ["CSV_XS.xs"], "programRoutines": [{"name": "Text::CSV_XS::print"}], "repo": "https://github.com/cpan-authors/Text-CSV_XS", "versions": [{"lessThan": "1.65", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print.\n\nWhen a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected.\n\nThe next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field."}], "id": "CVE-2026-110756", "lastModified": "2026-10-20T19:17:30.000", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-110756", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-20T18:27:23.638819Z", "version": "2.0.3"}}]}, "published": "2026-10-16T23:17:00.847", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/cpan-authors/Text-CSV_XS/commit/0610a8d81262ae6f1ac82a88d73c8a471f38af19.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-116"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-text-csv_xs: Text::CSV_XS: Data corruption via invalid UTF-8 byte sequences", "id": "2554499", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554499"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-135", "details": ["A flaw was found in Text::CSV_XS. When printing records where a UTF-8 flagged field precedes invalid UTF-8 bytes, the module drops held-back bytes, closing quotes, and line endings without signaling an error. An attacker capable of providing crafted input can exploit this flaw to cause data corruption, resulting in subsequent records being merged or misinterpreted by downstream parsers."], "name": "CVE-2026-110756", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "perl-Text-CSV_XS", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "perl-Text-CSV_XS", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "perl-Text-CSV_XS", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-16T22:07:37Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-110756\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-110756\nhttps://github.com/cpan-authors/Text-CSV_XS/commit/0610a8d81262ae6f1ac82a88d73c8a471f38af19.patch\nhttps://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.65)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "text::csv_xs", "vendor": "hmbrand"}], "created": "2026-10-16T23:45:13.776005+00:00", "updated": "2026-10-22T23:00:14.532949+00:00", "vendors": ["hmbrand", "hmbrand$PRODUCT$text::csv_xs"]}