CodeChecker open redirect when URL contains multiple slashes after the product name
Summary
CodeChecker versions up to 6.24.5 contain an open redirect vulnerability due to missing protections against multiple slashes after the product name in the URL's path segment. This results in bypassing protections against CVE-2021-28861, leading to the same open redirect pathway.
Details
CodeChecker processes GET requests by first rewriting the path segment of the URL, and then passing the rewritten URL to the webserver framework.
When trimming the product name from the URL, no sanitization was performed on the remaining URL, which reintroduced the same issue as CVE-2021-28861, leading to the same open redirect pathway using URLs such as /Default//attacker.com/%2f...
Impact
The vulnerability allows an attacker to create a hyperlink that looks like a legitimate CodeChecker URL, but redirects to an attacker-supplied website when clicked.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | codechecker | < 6.24.6 | 6.24.6 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-601- Platform
- Python (PyPI)
- Package
codechecker- Disclosed
- 03.03.2025
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1259 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-g839-x3p3-g5fm - CC BY 4.0
Vulnerability history: codechecker
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 01.2022 05.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 1
- Medium 4
Disclosures per year
- 2022: 1
- 2023: 0
- 2024: 3
- 2025: 3
- 2026: 1
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CodeChecker open redirect when URL contains multiple slashes after the product name this entry
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