Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Syncope. (CVE-2026-73178)
Apache Syncope versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2 contain a vulnerability that allows an administrator with sufficient entitlements to access the list of existing Access Tokens via REST, including their signed JWT bodies. These tokens can be used to perform further REST requests and impersonate users with higher administrative privileges. Upgrading to versions 4.0.8 or 4.1.3 mitigates this issue.
AI Analysis
Technical Summary
This vulnerability in Apache Syncope (CVE-2026-73178) involves exposure of sensitive information to an unauthorized actor. Specifically, an administrator with appropriate entitlements can retrieve via REST the list of existing Access Tokens along with their signed JWT bodies. These tokens can then be leveraged to impersonate users with higher administrative privileges through further REST requests. The affected versions are from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. The issue is fixed in versions 4.0.8 and 4.1.3.
Potential Impact
An attacker who is an administrator with adequate entitlements can access sensitive token information, including signed JWTs, which can be used to escalate privileges by impersonating higher-privileged users. This can lead to unauthorized access to administrative functions within Apache Syncope, potentially compromising the integrity and confidentiality of the system.
Mitigation Recommendations
Users should upgrade Apache Syncope to version 4.0.8 or 4.1.3, where this vulnerability is fixed. No other mitigation steps are indicated. Patch status is confirmed by the vendor's recommended upgrade versions.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Syncope. (CVE-2026-73178)
Description
Apache Syncope versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2 contain a vulnerability that allows an administrator with sufficient entitlements to access the list of existing Access Tokens via REST, including their signed JWT bodies. These tokens can be used to perform further REST requests and impersonate users with higher administrative privileges. Upgrading to versions 4.0.8 or 4.1.3 mitigates this issue.
CVSS v3.1
Score 7.5high
Affected software
pkg:maven/org.apache.syncope/syncope-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache Syncope (CVE-2026-73178) involves exposure of sensitive information to an unauthorized actor. Specifically, an administrator with appropriate entitlements can retrieve via REST the list of existing Access Tokens along with their signed JWT bodies. These tokens can then be leveraged to impersonate users with higher administrative privileges through further REST requests. The affected versions are from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. The issue is fixed in versions 4.0.8 and 4.1.3.
Potential Impact
An attacker who is an administrator with adequate entitlements can access sensitive token information, including signed JWTs, which can be used to escalate privileges by impersonating higher-privileged users. This can lead to unauthorized access to administrative functions within Apache Syncope, potentially compromising the integrity and confidentiality of the system.
Mitigation Recommendations
Users should upgrade Apache Syncope to version 4.0.8 or 4.1.3, where this vulnerability is fixed. No other mitigation steps are indicated. Patch status is confirmed by the vendor's recommended upgrade versions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9664-6254-g54f
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-73178"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8a1d055bf5e2cf5f3e938
Added to database: 09/15/2026, 01:39:28 UTC
Last enriched: 09/15/2026, 02:03:01 UTC
Last updated: 09/15/2026, 05:01:23 UTC
Views: 4
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