CVE-2026-2555: A weakness has been identified in JeecgBoot 3.9.1

Routine

MEDIUM 5.0DOWNGRADE

CVE-2026-2555 is a medium-severity flaw (CVSS 5.0) affecting jeecg boot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in JeecgBoot 3.9.1. This vulnerability affects the function importDocumentFromZip of the file org/jeecg/modules/airag/llm/controller/AiragKnowledgeController.java of the component Retrieval-Augmented Generation. Executing a manipulation can lead to deserialization. The attack can be launched remotely. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. The project was inform

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-20, CWE-502
Published	2026-02-16
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: jeecg

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

Am I affected?

Timeline

2026-02-16 12:16 UTCPublished CVE record published
2026-06-17 10:31 UTCUpdated Record last modified

jeecg jeecg boot DOWNGRADE

Affected: 3.9.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.9.1

1. Check installed version

apt-cache policy jeecg-boot || rpm -q jeecg-boot || jeecg-boot --version

2. No fixed release: DOWNGRADE to a release before 3.9.1 (Debian / Ubuntu)

apt-cache madison jeecg-boot sudo apt install jeecg-boot=<VERSION_BEFORE_3.9.1> sudo apt-mark hold jeecg-boot

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jeecg-boot sudo dnf downgrade jeecg-boot-<VERSION_BEFORE_3.9.1> sudo dnf versionlock add jeecg-boot

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-2026-2555?

jeecg boot: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-2555 being exploited?

CVE-2026-2555 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-2026-2555 affect?

CVE-2026-2555 affects jeecg boot. Severity is medium (CVSS 5.0). A weakness has been identified in JeecgBoot 3.9.1. This vulnerability affects the function importDocumentFromZip of the file org/jeecg/modules/airag/llm/controller/AiragKnowledgeController.java of the component Retrieval-Augmented Generatio

How urgent is CVE-2026-2555?

Priority 30/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-2945 MEDIUM 6.3 DOWNGRADE A weakness has been identified in JeecgBoot 3.9.0
CVE-2026-2822 MEDIUM 6.3 UPGRADE A security vulnerability has been detected in JeecgBoot up to 3.9.1
CVE-2026-2111 MEDIUM 4.3 UPGRADE A weakness has been identified in JeecgBoot up to 3.9.0
CVE-2026-1746 MEDIUM 6.3 DOWNGRADE A vulnerability was identified in JeecgBoot 3.9.0
CVE-2024-43028 CRITICAL 9.8 UPGRADE A command injection vulnerability in the component /jmreport/show of jeecg boot v3.0.0 to v3.5.3 allows attack

References

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