CVE-2026-77781

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["Tie::Hash::Regex"], "packageName": "Tie-Hash-Regex", "packageURL": "pkg:cpan/Tie-Hash-Regex", "programFiles": ["lib/Tie/Hash/Regex.pm"], "programRoutines": [{"name": "Tie::Hash::Regex::FETCH"}, {"name": "Tie::Hash::Regex::EXISTS"}, {"name": "Tie::Hash::Regex::DELETE"}], "repo": "https://github.com/davorg-cpan/tie-hash-regex", "versions": [{"lessThan": "2.0.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Tie::Hash::Regex versions before 2.0.0 for Perl will throw an exception on unparseable lookup keys.\n\nThe FETCH, EXISTS and DELETE methods throw an exception when on malformed regular expressions.\n\nEach method falls back to a regex match when the key is not already stored in the hash, compiling the caller's key with a bare qr// and no eval guard. A key that is not a valid regular expression pattern, such as a single unmatched bracket, dies.\n\nAn application that looks up externally supplied strings in a tied hash will die on an invalid key."}, {"lang": "es", "value": "Las versiones de Tie::Hash::Regex anteriores a la 2.0.0 para Perl lanzar\u00e1n una excepci\u00f3n en claves de b\u00fasqueda no analizables.\n\nLos m\u00e9todos FETCH, EXISTS y DELETE lanzan una excepci\u00f3n cuando se encuentran con expresiones regulares mal formadas.\n\nCada m\u00e9todo recurre a una coincidencia de expresi\u00f3n regular cuando la clave no est\u00e1 ya almacenada en el hash, compilando la clave del llamador con un qr// \u201cdesnudo\u201d y sin protecci\u00f3n de eval. Una clave que no es un patr\u00f3n de expresi\u00f3n regular v\u00e1lido, como un solo corchete sin cerrar, muere.\n\nUna aplicaci\u00f3n que busca cadenas suministradas externamente en un hash ligado morir\u00e1 con una clave inv\u00e1lida."}], "id": "CVE-2026-77781", "lastModified": "2026-10-15T19:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77781", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-27T19:12:36.613814Z", "version": "2.0.3"}}]}, "published": "2026-08-22T00:16:46.710", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/davorg-cpan/tie-hash-regex/commit/4239732cb76233543e2ded8ff5e0f238af152e0c.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/DAVECROSS/Tie-Hash-Regex-2.0.0/source/Changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/08/22/2"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-248"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.0)"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}]}, "product": "tie_hash_regex", "vendor": "davorg-cpan"}], "created": "2026-08-22T03:00:12.225306+00:00", "updated": "2026-08-28T19:30:16.880986+00:00", "vendors": ["davorg-cpan", "davorg-cpan$PRODUCT$tie_hash_regex"]}