---
id: CVE-2026-81691
aliases:
  - PYSEC-2026-3797
  - GHSA-xr64-hcxg-4ghr
title: >-
  openssl_encrypt versions before 1.4.9 fail to validate server URLs in login
  and register_with_email functions, accepting unencrypted http…
summary: >-
  openssl_encrypt versions before 1.4.9 fail to validate server URLs in login
  and register_with_email functions, accepting unencrypted http:// URLs and
  unconfigured hosts. Attackers on the network path can intercept cleartext
  credentials i…
severity: none
vendor: openssl-encrypt
product: openssl-encrypt
ecosystem: pip
affected:
  - openssl-encrypt < 1.4.9
patched:
  - openssl-encrypt 1.4.9
published: '2026-08-27'
updated: '2026-09-03'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2026-3797'
references:
  - url: >-
      https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-xr64-hcxg-4ghr
  - url: >-
      https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-credential-leakage-via-unvalidated-server-urls
tags:
  - osv
  - pip
epss: 0.00272
epssPercentile: 0.17362
ingestedAt: '2026-09-03T19:32:12.197Z'
---

## Overview

openssl_encrypt versions before 1.4.9 fail to validate server URLs in login and register_with_email functions, accepting unencrypted http:// URLs and unconfigured hosts. Attackers on the network path can intercept cleartext credentials including client_id, passwords, and JWTs to achieve full keyserver account takeover.

## Affected packages

- `openssl-encrypt < 1.4.9`

## Remediation

Upgrade to a patched release:

- `openssl-encrypt 1.4.9`