Detections
Analytics

SCA: security update for github.com/coredns/coredns (GHSA-c9v3-4pv7-87pr)

medium Tenable Cloud Security Plugin ID 438447

Description

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

 - CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a logical vulnerability in CoreDNS
 allows DNS access controls to be bypassed due to the default execution order of plugins. Security plugins
 such as acl are evaluated before the rewrite plugin, resulting in a Time-of-Check Time-of-Use (TOCTOU)
 flaw. This issue has been patched in version 1.14.2. (CVE-2026-26017)

See Also

https://github.com/advisories/GHSA-c9v3-4pv7-87pr

Plugin Details

Severity: Medium

ID: 438447

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/6/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.19

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-26017

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/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: 3/6/2026

Vulnerability Publication Date: 3/6/2026

Reference Information

CVE: CVE-2026-26017

cwe: CWE-367