CVE-2026-10692 johnhuang316 code-index-mcp search_code_advanced is_safe_regex_pattern redos
Remote attackers can cause denial of service in code-index-mcp by submitting malicious regex patterns to the search_code_advanced function.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-10692?
CVE-2026-10692 is a medium-severity denial of service vulnerability in johnhuang316 code-index-mcp, published on 2 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in johnhuang316 code-index-mcp up to 2.14.0. Affected is the function is_safe_regex_pattern of the component search_code_advanced. Executing a manipulation of the argument regex can lead to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.14.1 is able to address this issue. This patch is called 25bc02fac74051ddae15ce79e952f00211b1ea6b. Upgrading the affected component is recommended.
Which versions are affected by CVE-2026-10692?
3 open source packages ship an affected version, including code-index-mcp.
| Package | Affected | Fixed in |
|---|---|---|
code-index-mcp PyPI | All versions | 2.14.1 |
code-index-mcp PyPI | All versions | 2.14.1 |
code-index-mcp PyPI | All versions | 2.14.1 |
How do I fix CVE-2026-10692?
Upgrade code-index-mcp to 2.14.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-10692 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10692 exists.
Sources
Also known as GHSA-647r-72hf-4vmh, PYSEC-2026-2421.