Skip to content
Fencer Vulns
critical 9.1

CVE-2026-111959 json

Apache Arrow Rust: Improper validation of RunEndEncoded arrays allows out of bounds reads

published 2026-11-02 6 d ago modified 2026-11-06 2 d ago also GHSA-gqmm-qrjq-4c7h , RUSTSEC-2026-0442 , EUVD-2026-115182

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

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.

Patch / fix

  • crates.io arrow-data 57.3.2, 58.4.1, 59.3.2, 60.1.0
  • Apache Software Foundation Apache Arrow Rust 60.1.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-111959 updated cvss 6.5

arrow: arrow: Out-of-bounds read via improper validation of RunEndEncoded arrays

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/vector-rhel9
    affected: no fix planned “Out of support scope”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 d ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
crates.io arrow-data
>=33.0.0, <57.3.2
>=58.0.0, <58.4.1
>=59.0.0, <59.3.2
>=60.0.0, <60.1.0
57.3.2
58.4.1
59.3.2
60.1.0

Affected products

  • Apache Software Foundation Apache Arrow Rust

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.