CRITICALCVSS 9.1Vulnerability

CVE-2026-9190

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.

Properties

severity
CRITICAL
cvss_severity
CRITICAL
cvss_score
9.1
epss_score
0.00737
retrieved_at
2026-10-12T12:53:06+00:00
last_source
FIRST EPSS
score
9.1
cve_id
CVE-2026-9190
cvss_vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
signal_observed_at
2026-09-11T17:55:57+00:00
vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
published_at
2026-08-05T16:17:09.940
last_modified
2026-09-03T14:49:36.613
epss_percentile
0.53201

Related Entities (4)

AFFECTS_PRODUCT (1)

→[Product]

ENRICHED_BY (1)

→[Source]FIRST EPSS

HAS_WEAKNESS (1)

→[Weakness]Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

DESCRIBED_BY (1)

→[Source]NVD

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