CVE-2026-2817
📋 TL;DR
CVE-2026-2817 is a local privilege escalation vulnerability in Spring Data Geode where snapshot imports extract archives into predictable, permissive directories under system temp locations. This allows local users on shared hosts to access other users' extracted cache data, potentially exposing sensitive information. Organizations using Spring Data Geode on multi-user systems are affected.
💻 Affected Systems
- Spring Data Geode
⚠️ 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
Complete exposure of all cached data including sensitive application data, credentials, or business information to any local user on the shared host.
Likely Case
Partial exposure of cache contents containing application data, potentially revealing business logic or user information.
If Mitigated
Minimal impact with proper directory permissions and isolation controls preventing unauthorized access.
🎯 Exploit Status
Exploitation requires local access to the system and basic file system navigation skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Spring Data Geode security advisory for specific patched version
Vendor Advisory: https://spring.io/security
Restart Required: Yes
Instructions:
1. Check current Spring Data Geode version
2. Update to the patched version specified in Spring security advisory
3. Restart all affected services
4. Verify the fix by testing snapshot import functionality
🔧 Temporary Workarounds
Secure Temp Directory Permissions
linuxSet restrictive permissions on system temp directory to prevent unauthorized access
chmod 700 /tmp/spring-geode-*
chown root:root /tmp/spring-geode-*
Custom Temp Directory
allConfigure Spring Data Geode to use a secure, isolated temp directory
export JAVA_OPTS="$JAVA_OPTS -Djava.io.tmpdir=/secure/temp/path"
🧯 If You Can't Patch
- Implement strict user isolation on shared hosts using containers or virtualization
- Disable snapshot import functionality if not required
🔍 How to Verify
Check if Vulnerable:
Check if Spring Data Geode is using default temp directory for snapshot imports and verify directory permissionsCheck Version:
Check application dependencies or pom.xml for Spring Data Geode versionVerify Fix Applied:
Test snapshot import and verify extracted files are in secure, non-predictable locations with proper permissions📡 Detection & Monitoring
Log Indicators:
- Multiple user access attempts to temp directories
- Unauthorized file access patterns in system logs
Network Indicators:
- Not applicable - local vulnerability only
SIEM Query:
source="system_logs" AND (event="file_access" AND path="/tmp/spring-geode-*")