CVE-2026-14978

Q: How do I fix CVE-2026-14978?

Upgrade go-slug to 0.18.3 or later.

Q: Is CVE-2026-14978 being actively exploited?

Not that we know of. CVE-2026-14978 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.10% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.

Q: How severe is CVE-2026-14978?

CVE-2026-14978 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-14978 affect?

Published advisories record a fix for go-slug (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-176

How to fix

Remediation Available

go-slugNVD

Affected:>= 0.4.0, < 0.18.3Fixed in:0.18.3CVE-2026-14978derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Vendor Advisory1

ibm.com

Related Vulnerabilities

Other CWE-176 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-48618	Medium	6.5	3.2%	-	Fix
CVE-2024-24691	Critical	9.6	1.7%	-	Fix
CVE-2023-39213	Critical	9.6	1.4%	-	Fix
CVE-2024-47611	Medium	6.3	0.8%	-	-
CVE-2024-43093	High	7.3	0.7%	KEV	-
CVE-2026-45135	High	8.1	0.7%	-	Fix

Common questions

How do I fix CVE-2026-14978?

Upgrade go-slug to 0.18.3 or later.

Is CVE-2026-14978 being actively exploited?

Not that we know of. CVE-2026-14978 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.10% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.

How severe is CVE-2026-14978?

CVE-2026-14978 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-14978 affect?

Published advisories record a fix for go-slug (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-14978

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-04.