| Name | CVE-2026-7111 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1135232 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libtext-csv-xs-perl (PTS) | bullseye | 1.45-1 | vulnerable |
| bookworm | 1.49-1 | vulnerable | |
| trixie | 1.60-1 | vulnerable | |
| forky | 1.61-1 | vulnerable | |
| sid | 1.62-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libtext-csv-xs-perl | source | (unstable) | 1.62-1 | 1135232 |
[trixie] - libtext-csv-xs-perl <no-dsa> (Minor issue)
[bookworm] - libtext-csv-xs-perl <no-dsa> (Minor issue)
https://lists.security.metacpan.org/cve-announce/msg/39453344/
https://github.com/cpan-authors/Text-CSV_XS/issues/65
Requisite for test case: https://github.com/cpan-authors/Text-CSV_XS/commit/b69bd94c2847cf3a28442af6286a345435955bcd
Fixed by: https://github.com/cpan-authors/Text-CSV_XS/commit/c17f31a5f2bf36674748eb4b6e25672f0571a224