Critical· 9.8official fix available

CVE-2026-63071

CVE-2026-63071 is a critical vulnerability in Apache Syncope (versions 3.0.0-M0 to 4.1.1) where administrators can bypass security safeguards to execute malicious Groovy code. Upgrading to 4.0.7 or 4.1.2 resolves the issue by strengthening the Groovy security sandbox.

publishedJul 20, 2026

last modifiedJul 27, 2026

sourcesNVD

severity · cvss

9.8

critical · how bad it is

exploitation · epss

<1%

36th percentile · chance of exploitation in 30 days

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →

auto-deletes from the system

counting…on Aug 20, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

Who is affected

Administrators with sufficient permissions in Apache Syncope versions 3.0.0-M0 through 4.0.6, 4.1.0-M0 through 4.1.1

Real-world impact

Allows attackers to execute arbitrary code with high privileges, compromising confidentiality, integrity, and availability

Why this severity

CVSS 9.8 (critical) due to remote code execution without user interaction or privileges

What to do about it

official fix available

recommended steps

01Upgrade Apache Syncope to version 4.0.7 or 4.1.2
02Verify the upgrade was applied successfully
03Restart affected services if required by the upgrade process

NVD-referenced vendor advisory

Timeline

Jul 20, 2026 · 13d ago
Published
Disclosed and added to the National Vulnerability Database.
Jul 21, 2026 · 12d ago
Official fix available
A vendor patch or mitigation now exists — see the remediation steps above.
Jul 27, 2026 · 6d ago
Advisory updated
The NVD record was last revised.

How it’s attacked

Attack vectorNetwork (remote)

Attack complexityLow

Privileges requiredNone

User interactionNone needed

ScopeUnchanged

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

References & advisories

lists.apache.org/thread/2236mlm6hbvs6g16yqz5…mailing listvendor advisory
openwall.com/lists/oss-security/2026/07/…mailing listthird party advisory

NVD advisory ↗Search advisories ↗

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →