CVE-2026-73194

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Source
https://cve.org/CVERecord?id=CVE-2026-73194
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-73194.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-73194
Aliases
  • GHSA-623j-hfpc-mrc4
Downstream
Published
2026-08-15T12:09:22Z
Modified
2026-08-30T03:30:25Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
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
Details

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.

Database specific 
{
    "cna_assigner": "CPANSec",
    "cwe_ids": [
        "CWE-1284",
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73194.json"
}
References

Affected packages

Git / github.com/perl5-dbi/dbi

Affected ranges

Type
GIT
Repo
https://github.com/perl5-dbi/dbi
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7fcc1e8d3500daa993ee78575f8ba5ac5590c7c0
Fixed
29b72ae7d2a8114a734a55840bf1c45b89207809
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.652"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.602
1.607
1.611_90
1.611_91
1.611_92
1.611_93
1.611_94
1.613_70
1.613_71
1.613_90
1.613_91
1.613_92
1.613_93
1.614_90
1.615
1.618
1.619
1.622
1.624
1.625
1.626
1.627
1.628
1.630
1.631
1.632
1.632_90
1.633
1.633_90
1.633_91
1.633_92
1.634
1.635
1.636
1.637
1.638
1.639
1.640
1.641
1.642
1.643
1.643_01
1.643_02
1.644
1.645
1.646
1.647
1.648
1.649
1.650
1.651
DBI-1.*
DBI-1.47
DBI-1.51
DBI-1.57
DBI-1.58

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-73194.json"