9.6

CVE-2026-9191: progress software corporation marklogic server Origin Validation Error

CVSS: 9.6v3.1CriticalAwaiting analysis
Published 12-10-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-9191 is a critical (CVSS 9.6) Origin Validation Error vulnerability in progress software corporation marklogic server. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.6/10
010
Critical · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 do not sufficiently isolate user-supplied code executed through certain REST and XDBC evaluation paths from HTTP request, response, and session state. An attacker able to execute code through an affected path could perform unauthorized actions or compromise an authenticated session.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

13-10-202620-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Progress software corporation1 product

1 vendor · 1 product

References

1 links