Progress SoftwareCVE-2026-9190
Progress Software MarkLogic Server: request smuggling
Critical9.1CVE-2026-9190 · Published Aug 5, 2026 · updated Sep 3, 2026
An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials. The vulnerability occurs when a crafted HTTP request containing both Content-Length and Transfer-Encoding headers causes a reverse proxy and MarkLogic Server to interpret request boundaries differently.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MarkLogic Server Product | >= 11.0.0, < 11.3.6 | 11.3.6 |
| >= 12.0.0, < 12.0.3 | 12.0.3 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-444
More Progress Software advisories
All Progress Software| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 5 | Progress Software MarkLogic Server: authentication bypass | Critical9.8 | 11.3.6+1 more |
| Aug 5 | Progress Software MarkLogic Server: privilege escalation | Critical9.9 | 11.3.6+1 more |
| Aug 5 | Progress Software MarkLogic Server: cross-site scripting | Critical9.3 | 11.3.6+1 more |
| Aug 5 | Progress Software MarkLogic Server: server-side request forgery | High8.5 | 11.3.6+1 more |
| Aug 5 | Progress Software MarkLogic Server: privilege escalation | High8.1 | 11.3.6+1 more |
| Aug 5 | Progress Software MarkLogic Server: privilege escalation | Critical9.9 | 11.3.6+1 more |