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CVE-2026-78183 - DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float

CVE ID : CVE-2026-78183 Published : Aug. 23, 2026, 8:16 p. m. • 54 minutes ago Description : DBD::Pg version 3. 21. 0 for Perl has a heap out-of-bounds write in quote_float. quote_float() allocates the length of the string + 1, which is the size of the bare numeric symbol plus NULL. But for special literals NaN, Inf, +Inf, -Inf, Infinity, +Infinity, -Infinity it emits the literal surrounded by quotes plus NULL, which is length + 3 bytes. Every recognised literal (case-insensitive) overflows by 2 bytes, a single quote and a NULL. This can be reached by the $dbh-quote method, for example $dbh-quote( "Infinity", DBI::SQL_NUMERIC ). This regression was introduced in 3. 21. 0 by the quote. c rewrite.

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cve-2026-78183

DBD::Pg version 3. 21. 0 for Perl has a heap out-of-bounds write in quote_float

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