CVE-2026-111959: Apache Arrow Rust: Improper validation of RunEndEncoded arrays allows out of bounds reads
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.6%
Up from 0.2% on .
EPSS score, percentile 46.7 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.1 Critical
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- from 60.0.0 to before 60.1.0
- 59.0.0 through 59.3.1
- 58.0.0 through 58.4.0
- 33.0.0 through 57.3.1
Source: CISA KEV 2026.11.10, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Apache Arrow Rust: Improper validation of RunEndEncoded arrays allows out of bounds reads
Out-of-bounds read vulnerability in Apache Arrow Rust (`arrow` crate), from version 33.0.0 through to versions 57.3.1, 58.4.0, 59.3.1 and 60.0.0. Improper validation of RunEndEncoded arrays in the ArrayData interface can allow reading data beyond the bounds of the child values array. Users are recommended to upgrade to versions 60.1.0, 59.3.2, 58.4.1, 57.3.2 which fixes the issue.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | from 60.0.0 to before 60.1.0 |
| Affected | 59.0.0 through 59.3.1 |
| Affected | 58.0.0 through 58.4.0 |
| Affected | 33.0.0 through 57.3.1 |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
Weakness
CWE-125, CWE-20
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
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