CVE-2026-111959
Out-of-bounds read via improper validation of RunEndEncoded arrays
CVE-2026-111959: Out-of-bounds read via improper validation of RunEndEncoded arrays. Not in the CISA KEV catalog. Medium advisory severity (CVSS 6.5, Red Hat).
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
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CVE-2026-111959 key facts
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- Medium
- CVSS base score
- 6.5 (Red Hat)
- Weakness
- CWE-125
- Fixed releases
- Apache: 60.1.0, 59.3.2, 58.4.1, 57.3.2
- VulniPulse record
- Published · Updated
Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-111959; bulletin-wide values are not repeated here.
Is CVE-2026-111959 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-111959 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-111959?
Upgrade to a fixed release named by the vendor:
- Apache: 60.1.0, 59.3.2, 58.4.1, 57.3.2
- Users are recommended to upgrade to versions 60.1.0, 59.3.2, 58.4.1, 57.3.2 which fixes the issue. (Apache)
Vendor advisory comparison
Apache
1 advisory- Advisory severityUnrated
Advisory [CVE-2026-111959] 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
CVE-2026-111959Source published Source updated
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.
- Affected products in this advisory
- Apache Arrow Rust
- Source-reported affected versions
- 33.0.0
- 57.3.1
- 58.4.0
- 59.3.1
1 more entries in the full advisory.
- Source-reported fixed versions
- 60.1.0
- 59.3.2
- 58.4.1
- 57.3.2
- Mitigation guidance
- Users are recommended to upgrade to versions 60.1.0, 59.3.2, 58.4.1, 57.3.2 which fixes the issue.
Red Hat
1 advisory- Advisory severityMedium6.5
Medium [CVE-2026-111959] Out-of-bounds read via improper validation of RunEndEncoded arrays
CVE-2026-111959Source published Source updated
Out-of-bounds read via improper validation of RunEndEncoded arrays. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-125. Affected product named by the advisory: Logging Subsystem for Red Hat OpenShift.
- Related products — impact not confirmed
- Logging Subsystem for Red Hat OpenShift
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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