CVE-2025-48734: Improper Access Control vulnerability in Apache Commons. A special BeanIntrospector class was added in vers

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HIGH 8.8WATCHLISTUPGRADE

CVE-2025-48734 is a high-severity flaw (CVSS 8.8) affecting commons beanutils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Access Control vulnerability in Apache Commons. A special BeanIntrospector class was added in version 1.9.2. This can be used to stop attackers from using the declared class property of Java enum objects to get access to the classloader. However this protection was not enabled by default. PropertyUtilsBean (and consequently BeanUtilsBean) now disallows declared class level property access by default. Releases 1.11.0 and 2.0.0-M2

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-05-28
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

2025-05-28 14:15 UTCPublished CVE record published
2026-06-17 09:30 UTCUpdated Record last modified

apache commons beanutils UPGRADE

Affected: >= 1.0 and < 1.11.0 · 2.0.0 milestone1

Fixed in: 1.11.0

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy commons-beanutils || rpm -q commons-beanutils || commons-beanutils --version

2. UPGRADE to 1.11.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade commons-beanutils

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade commons-beanutils

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 1.0 (Debian / Ubuntu)

apt-cache madison commons-beanutils sudo apt install commons-beanutils=<VERSION_BEFORE_1.0> sudo apt-mark hold commons-beanutils

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

dnf --showduplicates list commons-beanutils sudo dnf downgrade commons-beanutils-<VERSION_BEFORE_1.0> sudo dnf versionlock add commons-beanutils

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-2025-48734?

commons beanutils: upgrade to 1.11.0. Exact commands for each OS are on this page.

Is CVE-2025-48734 being exploited?

CVE-2025-48734 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-2025-48734 affect?

CVE-2025-48734 affects commons beanutils. Severity is high (CVSS 8.8). Improper Access Control vulnerability in Apache Commons. A special BeanIntrospector class was added in version 1.9.2. This can be used to stop attackers from using the declared class property of Java enum objects to get access to the cla

How urgent is CVE-2025-48734?

Priority 56/100. High severity; On your watchlist

Software pages

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References

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