CVE-2026-110752 Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by allocating one entry per index of an RFC 7111 selector in fragment.
Attackers can cause memory exhaustion and process termination by supplying crafted RFC 7111 selectors to the Text::CSV_XS Perl library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-110752?
CVE-2026-110752 is a high-severity denial of service vulnerability, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by allocating one entry per index of an RFC 7111 selector in fragment.
fragment expands a row= or col= selector into an array with one element per selected index before it reads any data, and it does not clamp an explicit end column in a cell= selector to the row. Only the syntax and order of the ranges are checked, so row=1-400000000 on a two-line file allocates 400 million elements.
An application that passes a request-supplied fragment to fragment or csv can be made to exhaust memory, which ends the process with an Out of memory error that eval cannot catch.
Weakness: CWE-770
Which versions are affected by CVE-2026-110752?
How do I fix CVE-2026-110752?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-110752 being exploited?
There is no known exploitation of CVE-2026-110752 in the wild and no public exploit code.
Sources
Also known as AZL-109745, DEBIAN-CVE-2026-110752, GHSA-c8hf-63cr-rrfm, UBUNTU-CVE-2026-110752.