How severe is CVE-2026-35607?

CVE-2026-35607 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35607 being actively exploited?

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

What products are affected by CVE-2026-35607?

CVE-2026-35607 affects Filebrowser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35607?

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-2026-35607 have an EU (EUVD) identifier?

Yes. CVE-2026-35607 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19782.

When was CVE-2026-35607 published?

CVE-2026-35607 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-35607

CVE-2026-35607 is a high-severity vulnerability in Filebrowser 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19782
Weakness: CWE-269
Affected product: Filebrowser
Published: 2026-04-07
Last modified: 2026-06-17

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the fix in commit b6a4fb1 ("self-registered users don't get execute perms") stripped Execute permission and Commands from users created via the signup handler. The same fix was not applied to the proxy auth handler. Users auto-created on first successful proxy-auth login are granted execution capabilities from global defaults, even though the signup path was explicitly changed to prevent execution rights from being inherited by automatically provisioned accounts. This vulnerability is fixed in 2.63.1.

Frequently asked questions

What is CVE-2026-35607?: File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the fix in commit b6a4fb1 ("self-registered users don't get execute perms") stripped Execute permission and Commands from users created via the signup handler. The same fix was not applied to the proxy auth handler. Users auto-created on first successful proxy-auth login are granted execution capabilities from global defaults, even though the signup path was explicitly changed to prevent execution rights from being inherited by automatically provisioned accounts. This vulnerability is fixed in 2.63.1.
How severe is CVE-2026-35607?: CVE-2026-35607 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35607 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35607?: CVE-2026-35607 affects Filebrowser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35607?: 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-2026-35607 have an EU (EUVD) identifier?: Yes. CVE-2026-35607 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19782.
When was CVE-2026-35607 published?: CVE-2026-35607 was published on 2026-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

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