CVE-2026-24814
📋 TL;DR
An integer overflow vulnerability in the hiredis module of swoole-src allows attackers to cause memory corruption through specially crafted input. This affects applications using swoole-src's Redis client functionality before version 6.0.2. The vulnerability could lead to denial of service or potentially remote code execution.
💻 Affected Systems
- swoole swoole-src
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the memory corruption can be weaponized into arbitrary code execution.
Likely Case
Denial of service through application crashes or memory corruption leading to instability.
If Mitigated
Limited impact if proper input validation and memory protections are in place.
🎯 Exploit Status
Exploitation requires sending specially crafted input to the Redis client functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.0.2
Vendor Advisory: https://github.com/swoole/swoole-src/pull/5698
Restart Required: Yes
Instructions:
1. Update swoole-src to version 6.0.2 or later using your package manager. 2. For manual installation: git clone https://github.com/swoole/swoole-src.git, checkout v6.0.2+, compile and install. 3. Restart all swoole-based services.
🔧 Temporary Workarounds
Disable Redis client functionality
allTemporarily disable or remove Redis client usage in swoole applications
Input validation wrapper
allImplement strict input validation for all Redis client inputs
🧯 If You Can't Patch
- Implement network segmentation to isolate swoole applications from untrusted networks
- Deploy memory protection mechanisms like ASLR and DEP if available
🔍 How to Verify
Check if Vulnerable:
Check swoole version: php --ri swoole | grep Version. If version is below 6.0.2 and Redis client is used, system is vulnerable.Check Version:
php --ri swoole | grep VersionVerify Fix Applied:
Confirm version is 6.0.2 or higher: php --ri swoole | grep Version. Test Redis client functionality with normal operations.📡 Detection & Monitoring
Log Indicators:
- Application crashes, segmentation faults, abnormal memory usage patterns in swoole logs
Network Indicators:
- Unusual Redis protocol traffic patterns, malformed Redis commands
SIEM Query:
source="swoole.log" AND ("segmentation fault" OR "memory corruption" OR "abnormal exit")