CVE-2026-35380
Description
A logic error in the cut utility of uutils coreutils causes the program to incorrectly interpret the literal two-byte string '' (two single quotes) as an empty delimiter. The implementation mistakenly maps this string to the NUL character for both the -d (delimiter) and --output-delimiter options. This vulnerability can lead to silent data corruption or logic errors in automated scripts and data pipelines that process strings containing these characters, as the utility may unintentionally split or join data on NUL bytes rather than the intended literal characters.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-35380
Vendor advisory: security@ubuntu.com — https://github.com/uutils/coreutils/releases/tag/0.8.0
Vendor advisory: security@ubuntu.com — https://github.com/uutils/coreutils/pull/11399
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | sid | fixed | 0.8.0-1 |
| debian | trixie | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| uutils | coreutils | {"endExcluding":"0.8.0"} | 0.8.0 |
References
- https://github.com/uutils/coreutils/pull/11399
- https://github.com/uutils/coreutils/releases/tag/0.8.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-35380
- https://github.com/uutils/coreutils/commit/593f5b191e8b9c87e4292955999c2d0b5cbcce69
- https://github.com/uutils/coreutils
- https://security-tracker.debian.org/tracker/CVE-2026-35380
- https://github.com/advisories/GHSA-m2pg-c7m6-77pj
CWEs
CWE-20
Verify integrity in audit chain (admin only). AS-IS.