CVE-2026-108677highCWE-862

CVE-2026-108677: high-severity vulnerability in JeecgBoot

JeecgBoot through 3.9.5 Missing Authorization via /sys/api/getUserByName

Published

38Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.1
exploitation probability
—
observed exploitation
nono source reports it
1 public exploit(s)
JeecgBoot through 3.9.5 contains a missing authorization vulnerability in GET /sys/api/getUserByName that allows low-privileged authenticated users to retrieve any user's stored password value. Attackers can decrypt the AES-CBC protected response using the hard-coded key exposed by /sys/getEncryptedString to obtain administrators' password ciphertexts for offline guessing.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
jeecgboot · JeecgBoot
public PoCs found — 1
cve_referencegithub.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_api_credential_family.pyunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — JeecgBoot

In the same product, most dangerous first.

CVE-2026-58377HIGHJeecgBoot 3.9.2 - Missing Authorization on OpenAPI Credential Management Endpoints Exposes Access/Secret KeysEPSS 0.4%CVE-2026-108680MEDIUMJeecgBoot through 3.9.5 Missing Authorization via /sys/api/sendTemplateAnnouncementEPSS —CVE-2026-108679MEDIUMJeecgBoot through 3.9.5 Missing Authorization via /sys/api/sendBusAnnouncementEPSS —CVE-2026-108678MEDIUMJeecgBoot through 3.9.5 Missing Authorization via /sys/api/queryUserRolesEPSS —CVE-2026-108676MEDIUMJeecgBoot through 3.9.5 Missing Authorization via /sys/annountCement/downLoadFilesEPSS —CVE-2026-108675MEDIUMJeecgBoot through 3.9.5 Missing Authorization via /sys/annountCement/editIzTopEPSS —
References
https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_api_credential_family.pyhttps://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/api/controller/SystemApiController.java#L100-L110https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-api-getuserbyname