CVE-2026-74870 openssl_encrypt before 1.4.8 Hardware Pepper Information Disclosure
Diagnostic commands in the openssl_encrypt library leak derived hardware pepper values to logs, exposing sensitive data that is salt-bound and limited in impact.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-74870?
CVE-2026-74870 is a high-severity vulnerability in Jahlives Openssl Encrypt, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
openssl_encrypt (pip) versions <= 1.4.7 contain an information exposure vulnerability where the 'hsm fido2-test' and 'hsm onlykey-test' diagnostic commands unconditionally print the full derived hardware pepper as hex to stdout/stderr (crypt_cli.py, handle_hsm_command). The printed value can persist in terminal scrollback, session recordings, or CI logs. Impact is limited because the pepper is derived from a random per-invocation test salt and is salt-bound, so the leaked value cannot be used to decrypt real files. A related plugin issue logged raw prf_data outside the secret-redaction path. Fixed in 1.4.8 (and 1.5.0) by removing the hex dumps and routing plugin debug output through the redaction layer.
Weakness: CWE-532
Which versions are affected by CVE-2026-74870?
1 open source package ship an affected version, including openssl-encrypt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openssl-encrypt PyPI | All versions | 1.4.7 |
Products include Jahlives Openssl Encrypt.
How do I fix CVE-2026-74870?
Upgrade openssl-encrypt to 1.4.7 or later.
Is CVE-2026-74870 being exploited?
There is no known exploitation of CVE-2026-74870 in the wild and no public exploit code.
Other vulnerabilities in Jahlives Openssl Encrypt
- CVE-2026-81680 openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal
- CVE-2026-81681 openssl_encrypt before 1.4.9 False Encryption via Cleartext Storage
- CVE-2026-81685 openssl_encrypt before 1.4.9 Text Injection via Recovery Slot Metadata
- CVE-2026-81694 openssl-encrypt before 1.4.9 Output Injection via Unsanitized Filenames in verify-usb Command
- CVE-2026-81695 openssl_encrypt before 1.4.9 Terminal Injection via key_id
Sources
Also known as GHSA-p9g8-wvh4-2jmx, GHSA-q9f6-q6m5-f5h2, PYSEC-2026-3956.