CVE-2026-5999: A vulnerability has been found in… (CVSS 6.3)

Description

A vulnerability has been found in JeecgBoot up to 3.9.1. This impacts an unknown function of the component SysAnnouncementController. Such manipulation leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor confirmed the issue and will provide a fix in the upcoming release.

Metrics

CVSS 3.1

6.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS 4.0

2.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.21%

11.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published: Apr 10, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-5999?

A vulnerability has been found in JeecgBoot up to 3.9.1. This impacts an unknown function of the component SysAnnouncementController. Such manipulation leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor confirmed the issue and will provide a fix in the upcoming release.

How severe is CVE-2026-5999?

CVE-2026-5999 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5999?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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