What’s Vulnerable › Vulnerabilities

CVE-2026-82235: filebrowser through 2.63.23 Denial of Service via named pipes

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-09-24
• Weakness: CWE-400

Description

filebrowser through 2.63.23 fails to validate named pipes in directory archive and public download handlers, allowing attackers to trigger blocking open syscalls. Authenticated users or anonymous visitors with public share links can repeatedly request archives containing named pipes to pin server goroutines and exhaust connection resources.

Affected products

• filebrowser: through 2.63.23

References

• https://github.com/filebrowser/filebrowser/commit/586d198d
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8q5j-8wcr-8v2v
• https://www.vulncheck.com/advisories/filebrowser-through-2.63.23-denial-of-service-via-named-pipes

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