5.5
MEDIUM CVSS 3.1
CVE-2026-14978
Unicode normalization mismatch in go-slug ignore pattern matching may bypass intended file exclusions
Description

HashiCorp go-slug 0.4.0 through 0.18.2 could allow a local attacker to bypass .terraformignore exclusions and cause sensitive files to be included in Terraform slug uploads due to improper handling of Unicode normalization during path matching.

INFO

Published Date :

Aug. 19, 2026, 9:16 p.m.

Last Modified :

Aug. 20, 2026, 4:17 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-14978 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Hashicorp go-slug
2 Hashicorp go_slug
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 9a959283-ebb5-44b6-b705-dcc2bbced522
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM MITRE-CVE
Solution
Update go-slug to a version that properly handles Unicode normalization for path matching.
  • Update go-slug to patch vulnerabilities.
  • Review file inclusion logic for path handling.
  • Test exclusion rules with Unicode filenames.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-14978.

URL Resource
https://www.ibm.com/support/pages/node/7284170
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-14978 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-14978 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-14978 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-14978 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 20, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-14978', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-20T14:18:52.121485Z'}
  • New CVE Received by [email protected]

    Aug. 19, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:hashicorp:go_slug:0.4.0:*:*:*:*:*:*:*', 'cpe:2.3:a:hashicorp:go_slug:0.18.2:*:*:*:*:*:*:*'], 'vendor': 'HashiCorp', 'product': 'go-slug', 'versions': [{'status': 'affected', 'version': '0.4.0', 'versionType': 'semver', 'lessThanOrEqual': '0.18.2'}]}]
    Added Description HashiCorp go-slug 0.4.0 through 0.18.2 could allow a local attacker to bypass .terraformignore exclusions and cause sensitive files to be included in Terraform slug uploads due to improper handling of Unicode normalization during path matching.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
    Added CWE CWE-176
    Added Reference https://www.ibm.com/support/pages/node/7284170
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.