How severe is CVE-2025-0377?

CVE-2025-0377 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-0377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-0377?

CVE-2025-0377 affects Hashicorp Go-slug. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-0377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-0377 have an EU (EUVD) identifier?

Yes. CVE-2025-0377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0202.

When was CVE-2025-0377 published?

CVE-2025-0377 was published on 2025-01-21 and last updated on 2026-06-17.

CVE-2025-0377

CVE-2025-0377 is a high-severity vulnerability in Hashicorp Go-slug with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0202
Weakness: CWE-59
Affected product: Hashicorp Go-slug
Published: 2025-01-21
Last modified: 2026-06-17

Description

HashiCorp’s go-slug library is vulnerable to a zip-slip style attack when a non-existing user-provided path is extracted from the tar entry.

Frequently asked questions

What is CVE-2025-0377?: HashiCorp’s go-slug library is vulnerable to a zip-slip style attack when a non-existing user-provided path is extracted from the tar entry.
How severe is CVE-2025-0377?: CVE-2025-0377 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-0377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-0377?: CVE-2025-0377 affects Hashicorp Go-slug. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-0377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-0377 have an EU (EUVD) identifier?: Yes. CVE-2025-0377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0202.
When was CVE-2025-0377 published?: CVE-2025-0377 was published on 2025-01-21 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2025-01-hashicorp-go-slug-vulnerable-to-zip-slip-attack

Affected products (1)

cpe:2.3:a:hashicorp:go-slug:*:*:*:*:*:*:*:*

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