Quick answers
- Is CVE-2026-110758 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-110758 being exploited in the wild.
- How severe is CVE-2026-110758?
- Informational severity, published 16 October 2026.
- Which products and versions are affected?
- CPAN Text::CSV XS before 1.65.
- Is there a fix for CVE-2026-110758?
- Yes: fixed in 1.65. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-110758 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-110758?
- Check whether you run CPAN Text::CSV XS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.65
Technical details
The cx_strip_trail_whitespace() function walks backwards through a field decrementing length without checking if it has reached the field's start, causing an out-of-bounds read when processing all-blank unquoted fields under allow_whitespace. This occurs when an all-blank field arrives after an escape_char that differs from quote_char, or via CR CR line ending auto-detection. The fix adds a length check before dereferencing s[len-1].
Affected products
- CPAN Text::CSV_XS before 1.65
Timeline
- 2026-10-16: disclosed
- 2026-10-14: patched