CVE-2026-14978 Unicode normalization mismatch in go-slug ignore pattern matching may bypass intended file exclusions
A local attacker can bypass Terraform ignore rules via Unicode normalization flaws, exposing sensitive files in slug uploads.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-14978?
CVE-2026-14978 is a medium-severity vulnerability in HashiCorp go-slug, published on 19 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-176
Which versions are affected by CVE-2026-14978?
It affects 1 product.
Products include Hashicorp Go-Slug.
How do I fix CVE-2026-14978?
No fix has been published for CVE-2026-14978 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-14978 being exploited?
There is no known exploitation of CVE-2026-14978 in the wild and no public exploit code.
Other vulnerabilities in HashiCorp go-slug
Sources
Also known as GHSA-92x3-5h48-mfhx.