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CVE-2026-77883

Apache Syncope: Information disclosure via one-hop JEXL navigation past the JexlContextBuilder name denylist

Published: Sep 14, 2026Updated: Sep 14, 2026 Sources: CVE List NVDCWE-202
4.9MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 68.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-202

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache SyncopeOn-prem
Enterprise Software

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://lists.apache.org/thread/oshwdz2k4cl3042y39zq0yl4qkxbd83p
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/09/14/17
openwall.com

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