How severe is CVE-2026-34581?

CVE-2026-34581 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-34581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34581?

CVE-2026-34581 primarily affects Goshs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-34581?

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-2026-34581 have an EU (EUVD) identifier?

Yes. CVE-2026-34581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18493.

When was CVE-2026-34581 published?

CVE-2026-34581 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-34581

CVE-2026-34581 is a high-severity vulnerability in Goshs with a CVSS 3.x base score of 8.1. 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-288.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18493
Weakness: CWE-288
Affected product: Goshs
Published: 2026-04-02
Last modified: 2026-06-17

Description

goshs is a SimpleHTTPServer written in Go. From version 1.1.0 to before version 2.0.0-beta.2, when using the Share Token it is possible to bypass the limited selected file download with all the gosh functionalities, including code exec. This issue has been patched in version 2.0.0-beta.2.

Frequently asked questions

What is CVE-2026-34581?: goshs is a SimpleHTTPServer written in Go. From version 1.1.0 to before version 2.0.0-beta.2, when using the Share Token it is possible to bypass the limited selected file download with all the gosh functionalities, including code exec. This issue has been patched in version 2.0.0-beta.2.
How severe is CVE-2026-34581?: CVE-2026-34581 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-34581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34581?: CVE-2026-34581 primarily affects Goshs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-34581?: 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-2026-34581 have an EU (EUVD) identifier?: Yes. CVE-2026-34581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18493.
When was CVE-2026-34581 published?: CVE-2026-34581 was published on 2026-04-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:goshs:goshs:*:*:*:*:*:go:*:*
cpe:2.3:a:goshs:goshs:2.0.0:beta1:*:*:*:go:*:*

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