A logic error in the expr utility of uutils coreutils causes the program to evaluate parenthesized subexpressions during the parsing phase rather than at the execution phase. This implementation flaw prevents the utility from performing pro…
Exact source revision recorded 1 Nov 2026 06:10:14 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-25032
PublishedA logic error in the expr utility of uutils coreutils causes the program to evaluate parenthesized subexpressions during the parsing phase rather than at the execution phase. This implementation flaw prevents the utility from performing proper short-circuiting for logical OR (|) and AND (&) operations. As a result, arithmetic errors (such as division by zero) occurring within "dead" branches, branches that should be ignored due to short-circuiting, are raised as fatal errors. This divergence from GNU expr behavior can cause guarded expressions within shell scripts to fail with hard errors instead of returning expected boolean results, leading to premature script termination and breaking GNU-compatible shell control flow.
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datePublished: Apr 22, 2026, 4:09:14 PM
dateUpdated: Apr 22, 2026, 5:00:13 PM
- Source published
- Apr 22, 2026, 4:09:14 PM (timezone not stated)
- Source modified
- Apr 22, 2026, 5:00:13 PM (timezone not stated)
- Observed here
- 1 Nov 2026 06:10:14 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
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EUVD CVSS 3.1 · 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L