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CVE-2026-77781 - Tie::Hash::Regex versions before 2.0.0 for Perl will throw an exception on unparseable lookup keys

CVE ID : CVE-2026-77781 Published : Aug. 22, 2026, 12:16 a. m. • 53 minutes ago Description : Tie::Hash::Regex versions before 2. 0. 0 for Perl will throw an exception on unparseable lookup keys. The FETCH, EXISTS and DELETE methods throw an exception when on malformed regular expressions. Each 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. An application that looks up externally supplied strings in a tied hash will die on an invalid key. Severity: 0.0

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Vulnerabilities & Patches
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cve-2026-77781

Tie::Hash::Regex versions before 2. 0. 0 for Perl will throw an exception on unparseable lookup keys

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