CVE-2026-10879: DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binder

Q: How do I fix CVE-2026-10879?

dbi: upgrade to 1.648. Exact commands for each OS are on this page.

Q: Is CVE-2026-10879 being exploited?

CVE-2026-10879 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-10879 affect?

CVE-2026-10879 affects dbi. Severity is critical (CVSS 9.8). DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three character

Q: How urgent is CVE-2026-10879?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-10879 is a critical-severity flaw (CVSS 9.8) affecting dbi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three characters per binder in the buffer. Placeholders 10-99 require four characters, 100-999 require five characters, et cetera.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-06-05
Last modified	2026-10-26

Publisher (CNA): CPANSec · Vendor: perl

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-05 15:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

perl dbi UPGRADE

Affected: < 1.648

Fixed in: 1.648

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dbi || rpm -q dbi || dbi --version

2. UPGRADE to 1.648 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dbi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dbi

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-10879?

dbi: upgrade to 1.648. Exact commands for each OS are on this page.

Is CVE-2026-10879 being exploited?

CVE-2026-10879 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-10879 affect?

CVE-2026-10879 affects dbi. Severity is critical (CVSS 9.8). DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three character

How urgent is CVE-2026-10879?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Perl vulnerabilities

Related CVEs

CVE-2026-14740 CRITICAL 9.1 UPGRADE DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL commen
CVE-2026-14739 CRITICAL 9.8 UPGRADE DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number
CVE-2026-14380 HIGH 8.8 UPGRADE DBI versions before 1.650 for Perl are vulnerable to code injection via caller-influenced Profile. When a str

References

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