# CVE-2026-7111

> Vulnerability · severity: **HIGH** (CVSS 8.4).

## Description

Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruption.

The Parse, print, getline, and getline_all methods invoke registered callbacks (for example after_parse, before_print, or on_error) and cache the Perl argument stack pointer across the call. If a callback extends the argument stack enough to trigger a reallocation, the return value is written through the stale pointer into the freed buffer, and the caller reads the original $self argument as the return value instead.

Calling code that expects parsed data from getline_all receives the Text::CSV_XS object in its place, leading to logic errors or crashes. Text::CSV_XS objects used without any registered callbacks are not affected.

## Key facts

- **CVE ID:** CVE-2026-7111
- **Published:** 2026-04-29
- **CVSS severity:** HIGH
- **CVSS base score:** 8.4
- **CWE codes:** CWE-416, CWE-825

## Affected products

- `hmbrand:text\`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7111

## Citation

> AI Analytics. CVE-2026-7111. Retrieved 2026-07-15 from https://api.ai-analytics.org/cve/CVE-2026-7111. Derived from NIST NVD. Licensed CC0.

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