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CVE-2026-7111 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2026/04/29/17 CVE
https://github.com/cpan-authors/Text-CSV_XS/commit/c17f31a5f2bf36674748eb4b6e25672f0571a224.patch CPANSec
https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.62/changes CPANSec

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free CPANSec  
CWE-825 Expired Pointer Dereference CPANSec  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-7111
NVD Published Date:
04/29/2026
NVD Last Modified:
04/30/2026
Source:
CPANSec