{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8376", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-12T08:15:41.456Z", "datePublished": "2026-05-25T23:53:27.812Z", "dateUpdated": "2026-05-26T03:06:00.816Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "perl", "product": "perl", "programFiles": ["regcomp_study.c"], "programRoutines": [{"name": "Perl_study_chunk"}], "repo": "https://github.com/Perl/perl5", "vendor": "SHAY", "versions": [{"lessThanOrEqual": "5.43.10", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds.\n\nPerl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer.\n\nA caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-680", "description": "CWE-680 Integer Overflow to Buffer Overflow", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-25T23:53:27.812Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/Perl/perl5/commit/5e7f119eb2bb1181be908701f22bf7068e722f1c.patch"}], "solutions": [{"lang": "en", "value": "Upgrade to a future perl release, or apply the upstream patch."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-04-24T00:00:00.000Z", "value": "Issue reported."}, {"lang": "en", "time": "2026-05-20T00:00:00.000Z", "value": "Fix merged to blead."}], "title": "Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds", "workarounds": [{"lang": "en", "value": "On 32-bit perl builds, avoid compiling regular expressions from untrusted input until a fixed release is installed."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/26/1"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-26T03:06:00.816Z"}}]}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,5.43.10]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "perl", "source": "cna", "vendor": "SHAY"}, "product": "perl", "vendor": "shay"}], "created": "2026-05-26T01:30:15.941958+00:00", "updated": "2026-05-26T03:00:13.593380+00:00", "vendors": ["shay", "shay$PRODUCT$perl"]}