Detections
Analytics

SCA: security update for utcp-http (GHSA-39j6-4867-gg4w)

medium Tenable Self-Hosted Container Security Plugin ID 441488

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - python-utcp is the python implementation of UTCP. Prior to 1.1.3, the utcp-http plugin is vulnerable to a
 blind Server-Side Request Forgery (SSRF) caused by a trust-boundary inconsistency between manual discovery
 and tool invocation. register_manual() validates the discovery URL against an HTTPS / loopback allowlist,
 but call_tool() and call_tool_streaming() reuse the resolved tool_call_template.url directly without
 revalidating, and the OpenAPI converter blindly trusts whatever servers[0].url an attacker-hosted spec
 declares. An attacker who hosts a malicious OpenAPI spec on a legitimate HTTPS endpoint can declare e.g.
 servers: [{ url: "http://127.0.0.1:9090" }] or servers: [{ url: "http://169.254.169.254" }]; the OpenAPI
 converter then produces tools whose URL points at internal services on the agent host. All three HTTP-
 class protocols (utcp_http.http, utcp_http.streamable_http, utcp_http.sse) shared the same gap. This
 vulnerability is fixed in 1.1.3. (CVE-2026-44661)

Solution

Update the utcp-http library and its related packages to version 1.1.2 or later.

See Also

https://github.com/advisories/GHSA-39j6-4867-gg4w

Plugin Details

Severity: Medium

ID: 441488

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 5/8/2026

Updated: 6/30/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.38

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-44661

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-44661

cwe: CWE-918