CVE-2025-45767
📋 TL;DR
CVE-2025-45767 involves weak encryption in jose v6.0.10, potentially allowing attackers to decrypt or forge JWT tokens. This affects applications using this specific version of the jose library for cryptographic operations. Note that the vulnerability is disputed by third parties regarding security standard compliance.
💻 Affected Systems
- jose library
⚠️ 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
Attackers could decrypt sensitive JWT tokens, forge authentication tokens, or bypass authorization controls, leading to complete system compromise.
Likely Case
Limited impact due to the disputed nature and specific version requirement; potential for token manipulation in vulnerable configurations.
If Mitigated
Minimal impact if proper key management and validation are implemented, or if using unaffected versions.
🎯 Exploit Status
Exploitation requires understanding of JWT and cryptographic weaknesses; no public proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v6.0.11 or later
Vendor Advisory: https://github.com/panva/jose
Restart Required: No
Instructions:
1. Update jose package to v6.0.11 or later using npm: 'npm update jose'. 2. Verify the update with 'npm list jose'. 3. Test application functionality.
🔧 Temporary Workarounds
Upgrade to latest version
allUpdate jose library to a version that addresses the weak encryption issue.
npm install jose@latest
Pin to secure version
allExplicitly specify a secure version in package.json to prevent downgrade.
Update package.json to include "jose": "^6.0.11"
🧯 If You Can't Patch
- Implement additional token validation layers and monitor for anomalous token usage.
- Restrict access to systems using vulnerable jose version and apply network segmentation.
🔍 How to Verify
Check if Vulnerable:
Check package.json or run 'npm list jose' to see if version 6.0.10 is installed.Check Version:
npm list jose | grep joseVerify Fix Applied:
After update, run 'npm list jose' to confirm version is 6.0.11 or higher.📡 Detection & Monitoring
Log Indicators:
- Unusual JWT token validation failures
- Multiple failed authentication attempts with manipulated tokens
Network Indicators:
- Abnormal token request patterns to authentication endpoints
SIEM Query:
source="application_logs" AND (message="JWT validation error" OR message="Invalid token")🔗 References
- https://gist.github.com/ZupeiNie/705a606fbb99f3bb8c9b51e5bc13c91d
- https://gist.github.com/ZupeiNie/705a606fbb99f3bb8c9b51e5bc13c91d?permalink_comment_id=5711572#gistcomment-5711572
- https://github.com/panva
- https://github.com/panva/jose
- https://github.com/panva/jose/blob/1e36dd29e76511e06737e5d5d500d81e01a9c3d2/src/lib/check_key_length.ts#L6-L7
- https://github.com/panva/jose/discussions/813
