SCA: security update for github.com/gotenberg/gotenberg/v8 (GHSA-5q7p-7jgv-ww56)

high Tenable Cloud Security Plugin ID 441030

Description

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

- Gotenberg is an API-based document conversion tool. In versions 8.30.1 and earlier, the default private-IP
deny-lists for the --webhook-deny-list and --api-download-from-deny-list flags use a case-sensitive
regular expression (^https?://) to match URL schemes. Because Go's net/url.Parse() normalizes the scheme
to lowercase before establishing the outbound TCP connection, an attacker can bypass the deny-list by
simply capitalizing part of the URL scheme (e.g., HTTP://, HTTPS://, or Http://). This allows
unauthenticated requests to reach internal network services, including private IP ranges, loopback
addresses, and cloud instance metadata endpoints such as HTTP://169.254.169.254/latest/meta-data/. This
bypasses the same security control that was patched in CVE-2026-27018. This issue has been fixed in
version 8.31.0. (CVE-2026-40280)

Solution

Update the github.com/gotenberg/gotenberg/v8 library and its related packages to version 8.31.0 or later.

See Also

https://github.com/advisories/GHSA-5q7p-7jgv-ww56

Plugin Details

Severity: High

ID: 441030

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 4/30/2026

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: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-40280

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.8

Threat Score: 6.7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-40280

cwe: CWE-918