CVE-2026-77883— Apache Syncope: Information disclosure via one-hop JEXL navigation past the JexlContextBuilder name denylist
Quick assessment
Affected
Apache Software Foundation Apache Syncope
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache Syncope 中通过数据查询暴露敏感信息的漏洞 拥有足够“派生架构（Derived Schemas）”权限的管理员可以创建一个恶意的 JEXL 表达式，使得任何拥有足够“用户读取”权限的管理员都能访问 LinkedAccount（如果存在）或 Manager（如果已定义）的敏感信息，可能包括哈希化的凭据。 此问题影响 Apache Syncope 的以下版本： 3.0.0-M0 至 3.0.16 4.0.0-M0 至 4.0.7 4.1.0-M0 至 4.1.2 建议用户升级到 4.0.8 或 4.
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-77883
Vulnerability Information
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Vulnerability Title
Apache Syncope: Information disclosure via one-hop JEXL navigation past the JexlContextBuilder name denylist
Source: CVE Program / CVE List V5
Vulnerability Description
Exposure of sensitive information through data queries vulnerability in Apache Syncope.
An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access LinkedAccount's (if present) or Manager's (if defined) sensitive information, possibly including hashed credentials.
This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2.
Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过数据查询的敏感数据暴露
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Syncope | 3.0.0-M0 ~ 3.0.16 | - |
|
II. Public POCs for CVE-2026-77883
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2026-77883 (1)
Same Patch Batch · Apache Software Foundation · 2026-09-14 · 39 CVEs total
| CVE-2026-82434 | 10.0 CRITICAL | Apache Storm Nimbus, Apache Storm Client: Disclosure of the Topology ZooKeeper Credential |
| CVE-2026-78330 | Apache Syncope: Privilege escalation for admin user via JWT authentication | |
| CVE-2026-73470 | Apache Syncope: Delegating users can grant unowned Roles | |
| CVE-2026-73579 | Apache Syncope: Non-recursive Any search could skip Realms restrictions | |
| CVE-2026-75015 | Apache Syncope: Nested secrets leak cleartext into audit records readable | |
| CVE-2026-75030 | Apache Syncope: Incomplete authorization checks for Group members deprovisioning | |
| CVE-2026-77051 | Apache Syncope: SQL injection via unsanitized entityKey and opEvent in Audit Events search | |
| CVE-2026-73668 | Apache Syncope: Cross-realm disclosure of confidential ConnId bundles configuration values | |
| CVE-2026-77147 | Apache Syncope: Groovy Sandbox escape for empty CommandArgs | |
| CVE-2026-77181 | Apache Syncope: ClientApp update entitlement not effective | |
| CVE-2026-78318 | Apache Syncope: Unauthenticated reflected XSS in Console and Enduser | |
| CVE-2026-73178 | Apache Syncope: JWT Access Token takeover | |
| CVE-2026-78336 | Apache Syncope: OIDCC4UI provider list discloses client secrets to any authenticated user | |
| CVE-2026-82232 | Apache Syncope: SQL injection via sort parameter in Task search | |
| CVE-2026-86460 | Apache Syncope: Cypher Injection via FIQL Search on Neo4j Persistence | |
| CVE-2026-87779 | Apache Syncope: AES Secret Key disclosure via log output | |
| CVE-2026-87785 | Apache Syncope: JWT subject spoofing | |
| CVE-2026-87802 | Apache Syncope: SRA OAuth2 JWT signature verification bypass | |
| CVE-2026-68570 | Apache Doris: Authorization bypass leading to unauthorized data access | |
| CVE-2026-72524 | Apache Doris: Authorization bypass allowing a low-privilege user to read/write/drop arbitr |
Showing top 20 of 39 CVEs. View all on vendor page → →
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