{"apiVersion":"1.0","identifier":"CVE-2026-73194","description":"DBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric placeholder that sets the binder counter in preparse. preparse reserves seven output bytes per input byte, the width of the longest -:p99999- expansion. The -:N- branch parses the number with `atoi(src)` and assigns it to the binder counter with no range check, so a statement containing -:2147483648- leaves the counter negative (-2147483648 with glibc, where atoi wraps). Each following -?- then expands through `sprintf(start, -:p%d-, idx++)` to -:p-2147483648-, 14 bytes with the terminating NUL where the buffer budgets 7. The placeholder limit added in 1.650 tests the counter against 99,999, which a negative counter passes. Any caller that preparses an untrusted statement into -:pN- style placeholders gets a heap out-of-bounds write that grows with the number of -?- marks following the poisoned placeholder. The -?- and -%s- return styles compare the parsed number against the expected sequence and error out, and are unaffected.","publishedAt":"2026-08-15T13:17:48","lastModifiedAt":"2026-08-28T15:42:20","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73194","cvssScore":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","epssProbability":0.00493,"riskScore":0.95,"affectedProduct":"DBI","affectedVersions":"<1.652","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73194","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73194","en":"https://www.redsauce.net/en/cves/CVE-2026-73194","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73194","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73194","de":"https://www.redsauce.net/de/cves/CVE-2026-73194","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73194","el":"https://www.redsauce.net/el/cves/CVE-2026-73194"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73194"}}