CVE-2026-77427Public exploitNetwork attack vectorHinoki check available

Secret disclosure via published fallback encryption key

Published Oct 14, 2026 · Updated Oct 14, 2026

Key fallback in FileRise 3.9.0 through 3.21.0 allows attackers to decrypt stored secrets using a published key on manual installs. The fr_resolve_persistent_tokens_key() resolver selects the legacy compatibility key when neither PERSISTENT_TOKENS_KEY nor metadata/persistent_tokens.key exists. Exploitation requires separately obtained account or configuration ciphertext; disclosure includes TOTP secrets and credentials, not demonstrated writes or service interruption.

CVSS severity5.9
Medium
EPSS probability0.27%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Key fallback in FileRise 3.9.0 through 3.21.0 allows attackers to decrypt stored secrets using a published key on manual installs. The fr_resolve_persistent_tokens_key() resolver selects the legacy compatibility key when neither PERSISTENT_TOKENS_KEY nor metadata/persistent_tokens.key exists. Exploitation requires separately obtained account or configuration ciphertext; disclosure includes TOTP secrets and credentials, not demonstrated writes or service interruption.

The record

CVE
CVE-2026-77427
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
error311
Product
FileRise
Classifications
CWE-1188, CWE-798, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 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=>= 3.9.0, < 3.22.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

error311 · FileRiseversion=>= 3.9.0, < 3.22.0

Published CVSS scores

5.9error311CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
CWE-798Use of Hard-coded Credentials
T1552.001Credentials In Files

Public exploit references

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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