# CVE-2026-14739: DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders

CVE-2026-14739 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-14739, released July 11, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-14739
- Priority: High
- CVSS: 9.8 (Important)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 7, 2026
- Weakness: Out-of-bounds Write
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-14739

## Description

DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders. The fix for CVE-2026-10879 did not allocate enough memory to handle approximately 1.2-million placeholders. DBI version 1.650 sets a hard limit of 99,999 placeholders.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libdbi-perl Debian 12.15 (bookworm) | 1.643-4+deb12u2 | [DEBIAN-CVE-2026-14739](https://patchblox.com/security/data/fix/linux/debian-cve-2026-14739.md) | Jul 11, 2026 |
| Linux | libdbi-perl Debian 13.5 (trixie) | 1.652-2~deb13u1 | [DEBIAN-CVE-2026-14739](https://patchblox.com/security/data/fix/linux/debian-cve-2026-14739.md) | Jul 11, 2026 |
| Linux | libdbi-perl Debian 14 | 1.650-1 | [DEBIAN-CVE-2026-14739](https://patchblox.com/security/data/fix/linux/debian-cve-2026-14739.md) | Jul 11, 2026 |
| Linux | perl-DBI RHEL 10 | 1.643-26.el10_2.3 | [RHSA-2026:49514](https://patchblox.com/security/data/fix/linux/rhsa-2026-49514.md) | Aug 3, 2026 |
| Linux | perl-DBI RHEL 8 | 0:1.641-2.el8_10 | [RHSA-2026:62667](https://patchblox.com/security/data/fix/linux/rhsa-2026-62667.md) | Jul 14, 2026 |
| Linux | perl-DBI RHEL 9 | 0:1.643-9.el9_8.3 | [RHSA-2026:49612](https://patchblox.com/security/data/fix/linux/rhsa-2026-49612.md) | Aug 5, 2026 |
| Linux | perl-DBI almalinux 10 | 1.643-26.el10_2.3 | [ALSA-2026:49514](https://patchblox.com/security/data/fix/linux/alsa-2026-49514.md) | Aug 3, 2026 |
| Linux | perl-DBI almalinux 8 | 1.641-2.el8_10 | [ALSA-2026:62667](https://patchblox.com/security/data/fix/linux/alsa-2026-62667.md) | Sep 2, 2026 |
| Linux | perl-DBI almalinux 9 | 1.643-9.el9_8.3 | [ALSA-2026:49612](https://patchblox.com/security/data/fix/linux/alsa-2026-49612.md) | Aug 3, 2026 |
| Linux | perl-DBI amzn 2023 | 1.650-1.amzn2023.0.1 | [ALAS2023-2026-1982](https://patchblox.com/security/data/fix/linux/alas2023-2026-1982.md) | Jul 20, 2026 |
| Linux | perl-DBI ol 10 | 0:1.643-26.el10_2.3 | [ELSA-2026-49514](https://patchblox.com/security/data/fix/linux/elsa-2026-49514.md) | Aug 3, 2026 |
| Linux | perl-DBI ol 8 | 0:1.641-8.module+el8.10.0+90987+dfc813d3 | [ELSA-2026-52772](https://patchblox.com/security/data/fix/linux/elsa-2026-52772.md) | Aug 12, 2026 |
| Linux | perl-DBI ol 9 | 0:1.643-9.el9_8.3 | [ELSA-2026-49612](https://patchblox.com/security/data/fix/linux/elsa-2026-49612.md) | Aug 3, 2026 |
| Linux | perl-DBI rocky 10 | 0:1.643-26.el10_2.3 | [RLSA-2026:49514](https://patchblox.com/security/data/fix/linux/rlsa-2026-49514.md) | Aug 4, 2026 |
| Linux | perl-DBI rocky 8 | 0:1.641-2.el8_10 | [RLSA-2026:62667](https://patchblox.com/security/data/fix/linux/rlsa-2026-62667.md) | Sep 3, 2026 |
| Linux | perl-DBI rocky 9 | 0:1.643-9.el9_8.3 | [RLSA-2026:49612](https://patchblox.com/security/data/fix/linux/rlsa-2026-49612.md) | Aug 4, 2026 |
| Linux | perl-DBI-debuginfo amzn 2023 | 1.650-1.amzn2023.0.1 | [ALAS2023-2026-1982](https://patchblox.com/security/data/fix/linux/alas2023-2026-1982.md) | Jul 20, 2026 |
| Linux | perl-DBI-debugsource amzn 2023 | 1.650-1.amzn2023.0.1 | [ALAS2023-2026-1982](https://patchblox.com/security/data/fix/linux/alas2023-2026-1982.md) | Jul 20, 2026 |
| Linux | perl-DBI-tests amzn 2023 | 1.650-1.amzn2023.0.1 | [ALAS2023-2026-1982](https://patchblox.com/security/data/fix/linux/alas2023-2026-1982.md) | Jul 20, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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