CVE-2025-25362
📋 TL;DR
This Server-Side Template Injection (SSTI) vulnerability in Spacy-LLM v0.7.2 allows attackers to execute arbitrary code by injecting malicious payloads into template fields. This affects any system running the vulnerable version of Spacy-LLM, particularly those exposing template functionality to untrusted users.
💻 Affected Systems
- Spacy-LLM
⚠️ 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
Full system compromise with remote code execution, data exfiltration, and lateral movement within the network.
Likely Case
Unauthorized code execution leading to data theft, service disruption, or installation of backdoors.
If Mitigated
Limited impact with proper input validation and sandboxing, potentially only denial of service.
🎯 Exploit Status
SSTI vulnerabilities are well-understood with established exploitation patterns; public references demonstrate proof-of-concept.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v0.7.3 or later
Vendor Advisory: https://github.com/explosion/spacy-llm/issues/492
Restart Required: Yes
Instructions:
1. Update Spacy-LLM to v0.7.3 or later using pip: pip install --upgrade spacy-llm. 2. Restart any services using Spacy-LLM. 3. Verify the update with pip show spacy-llm.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation to reject suspicious template patterns before processing.
Template Sandboxing
allRun template processing in isolated environments with restricted permissions.
🧯 If You Can't Patch
- Disable or restrict access to template functionality in Spacy-LLM configurations.
- Implement network segmentation and firewall rules to limit access to affected systems.
🔍 How to Verify
Check if Vulnerable:
Check if Spacy-LLM version is exactly 0.7.2 using pip show spacy-llm or by examining package metadata.Check Version:
pip show spacy-llm | grep VersionVerify Fix Applied:
Confirm version is 0.7.3 or higher with pip show spacy-llm and test template functionality with safe inputs.📡 Detection & Monitoring
Log Indicators:
- Unusual template patterns in application logs
- Error messages related to template processing failures
- Unexpected process executions from Spacy-LLM context
Network Indicators:
- Suspicious outbound connections from Spacy-LLM hosts
- Anomalous data exfiltration patterns
SIEM Query:
source="application_logs" AND "spacy-llm" AND ("template" OR "SSTI" OR "injection")