Summary
CVE-2026-74892 is a Use of Hard-coded Credentials vulnerability (CWE-798) affecting the openssl_encrypt package published by jahlives (available on PyPI as openssl_encrypt/openssl-encrypt). The standalone telemetry server component ships with a hardcoded default secret key that is used for API key hashing, meaning any party who knows this fixed value can predict or forge valid API key hashes and bypass telemetry API authentication. The flaw is remotely exploitable over the network with no privileges or user interaction required and carries a HIGH severity rating.
Technical details
- Root cause: The telemetry server’s configuration embeds a static, hardcoded default secret key that is used to compute/verify hashes of API keys, rather than requiring a unique, securely generated secret per deployment.
- Trigger conditions: Any deployment of the
openssl_encryptstandalone telemetry server that has not overridden the default secret key remains exploitable; no special configuration is needed beyond running the affected component with default settings. - Attack vector: Network-based (AV:N) — an attacker with knowledge of the publicly known default key value can craft or predict valid API key hashes and submit them to the telemetry API, requiring no authentication, no user interaction, and low attack complexity.
- Impact: Successful exploitation compromises the confidentiality of telemetry API authentication, allowing an attacker to impersonate legitimate API clients and authenticate to the telemetry service without possessing a genuine, provisioned API key.
Affected software
- jahlives openssl_encrypt (PyPI package
openssl_encrypt,pkg:pypi/openssl_encrypt) — all versions prior to 1.4.0 - Fixed in version 1.4.0 and later
Severity
- CVSS v3.1 Base Score: 7.5 (HIGH) —
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS v4.0 Base Score: 8.7 (HIGH) —
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - CWE-798: Use of Hard-coded Credentials
Mitigation and recommended actions
- Immediate: Upgrade
openssl_encryptto version 1.4.0 or later, where the hardcoded default secret key has been removed/replaced. - If immediate patching is not possible:
- Explicitly configure a unique, securely generated secret key for the telemetry server rather than relying on any shipped default value.
- Restrict network access to the telemetry server/API to trusted hosts (e.g., via firewall rules or network segmentation) to reduce exposure to unauthenticated network-based attackers.
- Rotate any API keys and hashing secrets currently in use, and audit telemetry API access logs for signs of forged or unexpected authentication activity.
- Where feasible, disable the standalone telemetry server component until it can be upgraded.

