CVE-2026-90928Network attack vectorHinoki check available

Authenticated service crash via unbounded subtitle conversion

Published Sep 14, 2026 · Updated Sep 14, 2026

Memory exhaustion in File Browser 2.63.23 and earlier allows remote authenticated users to crash the service via subtitle conversion. The subtitle endpoint reads an entire .srt, .ass, or .ssa file into memory without enforcing a file-size or resource limit. The requester needs an account with download permission, and concurrent conversions can exhaust server memory and interrupt service.

CVSS severityUnavailable
Unscored
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Memory exhaustion in File Browser 2.63.23 and earlier allows remote authenticated users to crash the service via subtitle conversion. The subtitle endpoint reads an entire .srt, .ass, or .ssa file into memory without enforcing a file-size or resource limit. The requester needs an account with download permission, and concurrent conversions can exhaust server memory and interrupt service.

The record

CVE
CVE-2026-90928
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
File Browser
Product
File Browser
Classifications
T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.63.23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

File Browser · File Browserversion=0 <=2.63.23

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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