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CVE-2026-8376 Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds

🗓️ 25 May 2026 23:53:27Reported by CPANSecType 
cvelist
 cvelist
🔗 www.cve.org👁 62 Views

CVE-2026-8376: Perl on 32‑bit builds up to 5.43.10 overflows heap when compiling regex with a repeated fixed string.

Related
Affected
Refs
[
  {
    "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"
      }
    ]
  }
]

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