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GHSA-4rh7-jwg9-m28m

MediumCVSS 6.6 / 10
Published Apr 1, 2026·Last modified Apr 1, 2026
Affected Components(0)

No affected components available

Description

Summary

Refresh tokens are accepted as URL query parameters in the keyserver and telemetry server routes.

Affected Code

# openssl_encrypt_server/modules/keyserver/routes.py:214-215
# openssl_encrypt_server/modules/telemetry/routes.py:90-91
async def refresh_token(
    request: Request,
    refresh_token: str = Query(..., description="Refresh token")
):

Impact

Tokens in URL query parameters are exposed in:

  • Server access logs
  • Proxy/CDN logs
  • Browser history
  • HTTP Referer headers
  • Network monitoring tools

This creates significant token leakage risk.

Recommended Fix

  • Accept refresh tokens in the request body (POST) instead of query parameters
  • Use Body(...) instead of Query(...)

Fix

Fixed in commit 4b2adb0 on branch releases/1.4.x — moved refresh token from Query parameter to POST body via RefreshRequest Pydantic model.

Risk Scores
Base Score
6.6

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
6.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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