CVE-2026-73178 — Apache Syncope: JWT Access Token takeover

Description (CNA)

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Syncope. An administrator with adequate entitlements can get access via REST to the list of existing Access Tokens, including their signed JWT body. These values can be then used to perform further REST requests, impersonating users with higher administration entitlements. 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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Syncope	affected 3.0.0-M0 through 3.0.16; affected 4.0.0-M0 through 4.0.7; affected 4.1.0-M0 through 4.1.2

CWE

CWE-200

References

https://lists.apache.org/thread/owcdm0stb39mnkpyps0h6yw4gp2olnkj

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/14/4

CISA-ADP

No English description supplied.

No references supplied.