Biber: Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged
Affects biberSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical : patch biber as a priority.
Data as of 30 Oct 2026, 07:30 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewbiberpkg:brew/biberOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print. When a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected. The next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field.
References
- cpan.org/modules (opens in a new tab)
- github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110756.json (opens in a new tab)
- metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-110756 (opens in a new tab)
- github.com/cpan-authors/Text-CSV_XS/commit/0610a8d81262ae6f1ac82a88d73c8a471f38af19.patch (opens in a new tab)
- github.com/cpan-authors/Text-CSV_XS (opens in a new tab)