How severe is CVE-2026-35471?

CVE-2026-35471 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35471 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35471?

CVE-2026-35471 primarily affects Goshs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-35471?

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

Does CVE-2026-35471 have an EU (EUVD) identifier?

Yes. CVE-2026-35471 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19539.

When was CVE-2026-35471 published?

CVE-2026-35471 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-35471

CVE-2026-35471 is a critical-severity vulnerability in Goshs with a CVSS 3.x base score of 9.8. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19539
Weakness: CWE-22
Affected product: Goshs
Published: 2026-04-06
Last modified: 2026-06-17

Description

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, tdeleteFile() missing return after path traversal check. This vulnerability is fixed in 2.0.0-beta.3.

Frequently asked questions

What is CVE-2026-35471?: goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, tdeleteFile() missing return after path traversal check. This vulnerability is fixed in 2.0.0-beta.3.
How severe is CVE-2026-35471?: CVE-2026-35471 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35471 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35471?: CVE-2026-35471 primarily affects Goshs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-35471?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-35471 have an EU (EUVD) identifier?: Yes. CVE-2026-35471 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19539.
When was CVE-2026-35471 published?: CVE-2026-35471 was published on 2026-04-06 and last updated on 2026-06-17.

References

https://github.com/patrickhener/goshs/security/advisories/GHSA-6qcc-6q27-whp8

Affected products (3)

cpe:2.3:a:goshs:goshs:*:*:*:*:*:go:*:*
cpe:2.3:a:goshs:goshs:2.0.0:beta1:*:*:*:go:*:*
cpe:2.3:a:goshs:goshs:2.0.0:beta2:*:*:*:go:*:*

More vulnerabilities in Goshs

CVE-2026-40884 — Critical (CVSS 9.8): goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs contains an SFTP authentication bypass when the…
CVE-2026-40189 — Critical (CVSS 9.8): goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.4, goshs enforces the documented per-folder .goshs…
CVE-2026-35393 — Critical (CVSS 9.8): goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, the POST multipart upload directory not sanitized.…
CVE-2026-35392 — Critical (CVSS 9.8): goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.3, PUT upload in httpserver/updown.go has no path…
CVE-2026-40903 — Critical (CVSS 9.1): goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.6, goshs has an ArtiPACKED vulnerability. ArtiPACKED can…
CVE-2026-40885 — High (CVSS 8.8): goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials…

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