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VulnerabilityPublished

CVE-2026-9579: JeecgBoot · Improper Access Controls

Affects JeecgBootSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
JeecgBootAffected
  • =3.9.0
  • =3.9.1
Fixed in–
GitHubjeecgboot/JeecgBootpkg:github/jeecgboot/JeecgBootOther threatsAffected
  • =3.9.0
  • =3.9.1
Fixed in–

CPE configurations (1)

  • cpe:2.3:a:jeecgboot:jeecgboot:*:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade the affected JeecgBoot component to version 3.9.2, which addresses this vulnerability. Since the vendor advisory or patch links are not explicitly provided, confirm the upgrade from official JeecgBoot sources before deployment. Patch status is not explicitly confirmed beyond the recommendation to upgrade; verify vendor advisories for the latest remediation guidance.

Description

CVE-2026-9579 is a medium severity vulnerability in JeecgBoot versions up to 3.9.1. It involves improper access controls in the user.getUsername function within the SysUser component, specifically in the /sys/user/login/setting/userEdit file. The vulnerability arises from manipulation of the userIdentity argument, allowing remote attackers to potentially bypass access restrictions. An exploit has been publicly disclosed. Upgrading to JeecgBoot version 3.9.2 is recommended to address this issue.

References

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