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SCA: security update for github.com/ncarlier/webhookd (GHSA-v25g-mvwr-f5fp)

medium Tenable Cloud Security Plugin ID 447870

Description

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

 - webhookd is a minimalist webhook server that triggers shell scripts and external processes through HTTP
 requests. Prior to 1.22.0, webhookd deployments without htpasswd authentication forwarded all incoming
 HTTP headers through HTTPParamsToShellVars in pkg/api/index.go into the hook script environment without an
 allowlist. When an upstream reverse proxy did not strip a client-supplied X-WebAuthn-User header and a
 hook script trusted that variable for identity or privilege, a remote unauthenticated attacker could spoof
 another user, bypass script security controls, and access or modify resources available to the
 impersonated identity. This issue is fixed in version 1.22.0. (CVE-2026-59157)

Solution

Update the github.com/ncarlier/webhookd library and its related packages to version 1.22.0 or later.

See Also

https://github.com/advisories/GHSA-v25g-mvwr-f5fp

Plugin Details

Severity: Medium

ID: 447870

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 9/10/2026

Updated: 9/16/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-59157

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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: 9/9/2026

Vulnerability Publication Date: 9/9/2026

Reference Information

CVE: CVE-2026-59157