CVE-2026-25660 — Vulnerability in codechecker — CVE Details
CRITICAL
Codechecker has an authentication bypass for certain API calls
Published May 5, 2026Updated June 29, 2026Source: osv
Summary
### Summary
Authentication bypass occurs when the URL ends with Authentication with certain function calls. This bypass allows assigning arbitrary permissions to any existing user in CodeChecker.
### Details
The following functions are affected under the Authentication endpoint: `getAuthorisedNames`, `getPermissionsForUser`, `hasPermission`, `addPermission`, and `removePermission`.
The vulnerability allows unauthenticated users to execute these function calls with arbitrary arguments.
In the logs, the exploit shows as follows:
```
[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@getAuthorisedNames
[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@addPermission
```
### Impact
An attacker with a CodeChecker user can effectively acquire superuser permissions by calling these endpoints.
### Patch
A patch is available at https://github.com/Ericsson/codechecker/releases/tag/v6.27.4.
Advisory Timeline
- First published May 5, 2026 (160 days ago).
- Last revised June 29, 2026 — 55 days after initial publication.
Affected Packages (1)
Affects 1 ecosystem: pypi (1).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| codechecker | pypi | 6.16.0, 6.16.0a1, 6.17.0, 6.18.0 (+27 more) | Range-based data available |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-290
- CWE-863Incorrect AuthorizationMITRE
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 10.0 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
References
Frequently Asked Questions
- What is CVE-2026-25660?
- Codechecker has an authentication bypass for certain API calls This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 10.0/10).
- How do I check if my project is affected by CVE-2026-25660?
- CVE-2026-25660 affects codechecker. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-25660 and 200,000+ other known vulnerabilities.
Severity & Exploitability
CVSS Score
10.0
Exploitation is straightforward and causes maximum impact. Patch immediately.
Also Known As
GHSA-4v9x-cqc5-j645
PYSEC-2026-317
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