---
id: CVE-2026-120250
title: >-
  OpenAlgo 1.0.0.29 before 2.0.3.1 Improper Certificate Validation in SMTP
  Connections
summary: >-
  OpenAlgo 1.0.0.29 before 2.0.3.1 contains an improper certificate validation
  vulnerability in utils/email_utils.py and utils/email_debug.py that disables
  TLS hostname and certificate checks for STARTTLS and SMTPS. Network-positioned
  atta…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-295
vendor: marketcalls
product: OpenAlgo
affected:
  - OpenAlgo >= 1.0.0.29 < 2.0.3.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T15:39:05.887315Z'
published: '2026-11-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T15:39:19.445Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120250'
references:
  - url: >-
      https://github.com/marketcalls/openalgo/commit/af5d5f2cc564ee31cdd1159bc147a9b03cc713ac
  - url: >-
      https://github.com/marketcalls/openalgo/blob/main/docs/releases/version-2.0.3.1-released.md
    label: OpenAlgo 2.0.3.1 Release Notes
  - url: >-
      https://github.com/marketcalls/openalgo/blob/96e5927e5adbff146f203bf72c7a79add9e6622c/utils/email_utils.py#L403-L406
  - url: 'https://github.com/marketcalls/openalgo'
  - url: >-
      https://www.vulncheck.com/advisories/openalgo-1.0.0.29-before-2.0.3.1-improper-certificate-validation-in-smtp-connections
    label: >-
      VulnCheck Advisory: OpenAlgo 1.0.0.29 before 2.0.3.1 Improper Certificate
      Validation in SMTP Connections
tags:
  - cve.org
epss: 0.00114
epssPercentile: 0.0152
ingestedAt: '2026-11-05T21:36:00.911Z'
---

## Overview

OpenAlgo 1.0.0.29 before 2.0.3.1 contains an improper certificate validation vulnerability in utils/email_utils.py and utils/email_debug.py that disables TLS hostname and certificate checks for STARTTLS and SMTPS. Network-positioned attackers can present a forged certificate to intercept SMTP credentials and all later mail, including password-reset links.

## Affected

- `OpenAlgo >= 1.0.0.29 < 2.0.3.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.