Apache Syncope Patches 12 CVEs Including Groovy Sandbox Bypass RCE and Audit Search SQLi — Threadlinqs Intelligence
As of 2026-07-24, Apache Syncope Patches 12 CVEs Including Groovy Sandbox Bypass RCE and Audit Search SQLi is a critical-severity vulnerability threat, tracked by Threadlinqs Intelligence with 9 detection rules (Splunk SPL, Microsoft KQL, Sigma) and 26 indicators of compromise.
Threat ID: TL-2026-1666 · Severity: CRITICAL · CVSS: 7.2 · Status: ACTIVE · Category: VULNERABILITY
Apache Syncope released fixes for 12 CVEs across the 3.0, 4.0, and 4.1 branches, including three distinct Groovy-sandbox-bypass RCEs (CVE-2026-63071, CVE-2026-53421, CVE-2026-53405), a SQL injection
On 2026-07-20, the Apache Syncope Project Management Committee, led by Francesco Chicchiriccò, disclosed a batch of security advisories covering 12 CVEs discovered and patched across the actively maintained 3.0.x, 4.0.x, and 4.1.x release lines of Apache Syncope, an open-source Identity and Access Management (IAM) / Identity Governance and Administration (IGA) platform used to provision, synchronize, and manage user identities across enterprise systems. The disclosure batches into three risk clusters.
The highest-impact cluster is a family of THREE independent Groovy-sandbox-bypass remote-code-execution flaws, each in a different subsystem that lets a Syncope administrator supply custom Groovy logic: CVE-2026-63071 (general Implementation/COMMAND upload path), CVE-2026-53421 (scripted Connector subsystem, used for provisioning integrations to external resources), and CVE-2026-53405 (Flowable BPMN workflow engine ScriptTask nodes imported as process definitions). All three share the same root cause pattern seen in the earlier, related CVE-2025-57738 (patched April 2026): Syncope allows administrators to extend platform behavior by uploading Groovy source that is compiled at runtime via a GroovyClassLoader, and — prior to these patches — that compiled code ran with unrestricted access to the full JVM API surface (Runtime.exec, ProcessBuilder, File I/O, Socket, reflection), rather than inside Syncope's intended Groovy sandbox (built on Jenkins Script Security's SecureASTCustomizer). Because static initializer blocks in the uploaded Groovy class execute during the compile/parse phase itself — before any interface or sandbox validation occurs — the sandbox could be bypassed entirely, giving an authenticated administrator (or an actor who compromises/social-engineers an admin session) full remote code execution as the Syncope process user. Public technical writeups and a released PoC for the related CVE-2025-57738 predecessor bug demonstrated this exact primitive achieving uid=0(root) via `POST /syncope/rest/implementations/COMMAND/{key}`.
The second cluster is a set of authorization and injection flaws: CVE-2026-62183 (User Self-Service Privilege Escalation, CWE-269/CWE-862 class) allows any authenticated Syncope user, via the self-service role-request workflow, to grant themselves one or more administratively-defined Roles without approval — collapsing the privilege boundary between standard users and administrators. CVE-2026-57308 (SQL Injection in Audit Events search, CWE-89) allows an administrator to achieve execution of arbitrary SQL via stacked queries by supplying unsanitized `sort` parameters to the audit-search REST endpoint. CVE-2026-62418 (SSRF in Connectors and Resources Check) lets a low-privileged authenticated user trigger server-side requests against the resource-validation subsystem, potentially reaching internal-only network segments or cloud metadata endpoints. CVE-2026-42797 (Information Disclosure via JEXL, CWE-202) allows an administrator with only Derived Schema entitlements to author a malicious JEXL expression that lets other administrators (who have User-read but not full User entitlements) access security-sensitive User attribute data they should not be able to see.
The third, lower-severity cluster covers legacy-branch (3.0.x/4.0.x pre-4.0.4) issues fixed earlier in the same disclosure round: CVE-2026-42782 (post-auth Groovy sandbox bypass RCE, predecessor of the 63071/53421/53405 family, fixed in 4.1.1/4.0.6), CVE-2026-23795 (XXE in the Syncope Console allowing an administrator to construct malicious XML and exfiltrate sensitive data, CWE-611), and CVE-2026-23794 (Reflected XSS on the Enduser Login page, CWE-79, enabling credential/session-token theft via a crafted login link and account takeover).
No CVE in this batch has been added to the CISA KEV catalog and no in-the-wild exploitation has been confirmed as of 2026-07-24. All patched CVEs require some level of authentication (most require admini
Weaknesses (CWE)
CWE-693, CWE-284, CWE-269, CWE-862, CWE-89, CWE-918, CWE-202, CWE-611, CWE-79, CWE-798
Target sectors: government administration, finance, health, technology, education, enterprise-it
Target regions: Global
Detections & IOCs
As of 2026-07-25, this threat has 9 detection rule(s) across Splunk SPL, Microsoft KQL and Sigma, and 26 indicator(s) of compromise. Detection query text and full IOC values are available to authenticated users and programmatically via the Threadlinqs MCP server (Purple tier). View plans.
VULNERABILITY, CRITICAL, threat intelligence, cybersecurity, CVE-2026-63071, CVE-2026-57308, CVE-2026-62183, CVE-2026-62418, CVE-2026-53421, CVE-2026-53405, CVE-2026-42797, CVE-2026-42782, CVE-2026-23795, CVE-2026-23794, T1190, T1078, T1059, T1203, T1648, T1505, T1098, T1068, T1078, T1548