CVE-2025-56769: An issue was discovered in chinabugotech hutool before 5.8.4 allowing attackers to execute arbitrary expressio

Q: How do I fix CVE-2025-56769?

hutool: upgrade to 5.8.40. Exact commands for each OS are on this page.

Q: Is CVE-2025-56769 being exploited?

CVE-2025-56769 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-56769 affect?

CVE-2025-56769 affects hutool. Severity is medium (CVSS 6.5). An issue was discovered in chinabugotech hutool before 5.8.4 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.

Q: How urgent is CVE-2025-56769?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 6.5REMOTEUPGRADE

CVE-2025-56769 is a medium-severity flaw (CVSS 6.5) affecting hutool. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in chinabugotech hutool before 5.8.4 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-09-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hutool

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

Am I affected?

Timeline

2025-09-25 23:15 UTCPublished CVE record published
2026-06-17 09:42 UTCUpdated Record last modified

hutool hutool UPGRADE

Affected: < 5.8.40

Fixed in: 5.8.40

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 5.8.40 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hutool

Note

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

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-2025-56769?

hutool: upgrade to 5.8.40. Exact commands for each OS are on this page.

Is CVE-2025-56769 being exploited?

CVE-2025-56769 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-2025-56769 affect?

CVE-2025-56769 affects hutool. Severity is medium (CVSS 6.5). An issue was discovered in chinabugotech hutool before 5.8.4 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.

How urgent is CVE-2025-56769?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

References

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