CVE-2025-24896Network attack vector

Account takeover via uncleared logout token

Published Feb 11, 2025 · Updated Feb 12, 2025

Insufficient session expiration in Misskey before 2025.2.0-alpha.0 allows attackers to reuse a Bull Dashboard login token after logout. The frontend signout function removes local account data without expiring the token cookie; affected releases start at 12.109.0. Access requires the victim to log out and then leave or lend the same browser or device, allowing the next user to access the authenticated Bull Dashboard session.

CVSS severity8.1
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Misskey before 2025.2.0-alpha.0 allows attackers to reuse a Bull Dashboard login token after logout. The frontend signout function removes local account data without expiring the token cookie; affected releases start at 12.109.0. Access requires the victim to log out and then leave or lend the same browser or device, allowing the next user to access the authenticated Bull Dashboard session.

The record

CVE
CVE-2025-24896
Published
Feb 11, 2025
Updated
Feb 12, 2025
Vendor
Misskey Project
Product
Misskey
Classifications
CWE-613, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2025Record 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=>= 12.109.0, < 2025.2.0-alpha.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Misskey Project · Misskeyversion=>= 12.109.0, < 2025.2.0-alpha.0

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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