CVE-2026-7111
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-825
- Affected
- hmbrand/text\
- Source
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
References
- https://github.com/cpan-authors/Text-CSV_XS/commit/c17f31a5f2bf36674748eb4b6e25672f0571a224.patchMailing List, Patch
- https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.62/changesProduct, Release Notes
- http://www.openwall.com/lists/oss-security/2026/04/29/17Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/06/msg00037.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.