SCA: security update for saloonphp/saloon (GHSA-c83f-3xp6-hfcp)

high Tenable Self-Hosted Container Security Plugin ID 439216

Description

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

- Saloon is a PHP library that gives users tools to build API integrations and SDKs. Prior to version 4.0.0,
when building the request URL, Saloon combined the connector's base URL with the request endpoint. If the
endpoint was a valid absolute URL, the code used that URL as-is and ignored the base URL. The request—and
any authentication headers, cookies, or tokens attached by the connector—was then sent to the attacker-
controlled host. If the endpoint could be influenced by user input or configuration (e.g. redirect_uri,
callback URL), this allowed server-side request forgery (SSRF) and/or credential leakage to a third-party
host. The fix in version 4.0.0 is to reject absolute URLs in the endpoint: URLHelper::join() throws
InvalidArgumentException when the endpoint is a valid absolute URL, unless explicitly allowed, requiring
callers to opt-in to the functionality on a per-connector or per-request basis. (CVE-2026-33182)

Solution

Update the saloonphp/saloon library and its related packages to version 4.0.0 or later.

See Also

https://github.com/advisories/GHSA-c83f-3xp6-hfcp

Plugin Details

Severity: High

ID: 439216

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 3/26/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-33182

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2026

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-33182