CVE-2026-25087: Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.

This month

HIGH 7.0REMOTEWATCHLISTUPGRADE

CVE-2026-25087 is a high-severity flaw (CVSS 7.0) affecting arrow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an Arrow IPC file (but not an IPC stream) with pre-buffering enabled, if the IPC file contains data with variadic buffers (such as Binary View and String View data). Depending on the number of variadic buffers in a record batch column and on the temporal sequence of multi-threaded IO, a write to a dan

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.0 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-416
Published	2026-02-17
Last modified	2026-06-17

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-17 14:16 UTCPublished CVE record published
2026-06-17 10:24 UTCUpdated Record last modified

apache arrow UPGRADE

Affected: >= 15.0.0 and < 23.0.1

Fixed in: 23.0.1

Safe to downgrade to: a release before 15.0.0

1. Check installed version

apt-cache policy arrow || rpm -q arrow || arrow --version

2. UPGRADE to 23.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade arrow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade arrow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 15.0.0 (Debian / Ubuntu)

apt-cache madison arrow sudo apt install arrow=<VERSION_BEFORE_15.0.0> sudo apt-mark hold arrow

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list arrow sudo dnf downgrade arrow-<VERSION_BEFORE_15.0.0> sudo dnf versionlock add arrow

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-25087?

arrow: upgrade to 23.0.1. Exact commands for each OS are on this page.

Is CVE-2026-25087 being exploited?

CVE-2026-25087 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-25087 affect?

CVE-2026-25087 affects arrow. Severity is high (CVSS 7.0). Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an Arrow IPC file (but not an IPC stream) with pre-buffering enabled, if the IPC file contai

How urgent is CVE-2026-25087?

Priority 49/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

CVE-2024-52338 CRITICAL 9.8 UPGRADE Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package versions 4.0.0 thro
CVE-2024-41178 HIGH 7.5 UPGRADE Exposure of temporary credentials in logs in Apache Arrow Rust Object Store (`object_store` crate), version 0.
CVE-2019-12410 HIGH 7.5 UPGRADE While investigating UBSAN errors in https://github.com/apache/arrow/pull/5365 it was discovered Apache Arrow v
CVE-2019-12408 HIGH 7.5 UPGRADE It was discovered that the C++ implementation (which underlies the R, Python and Ruby implementations) of Apac
CVE-2019-11404 HIGH 8.1 UPGRADE arrow-kt Arrow before 0.9.0 resolved Gradle build artifacts (for compiling and building the published JARs) ov

References

← Back to latest CVEs