CVE-2025-51306Public exploitNetwork attack vector

Persistent account access via unrevoked session cookie

Published Aug 6, 2025 · Updated Aug 6, 2025

Session management in Gatling Enterprise before 1.25.0 allows remote authenticated users to retain application access after logout. The stateless session mechanism accepts the existing session-id cookie after logout and never invalidates it unless the encryption secret changes. Possession of a previously authenticated cookie preserves application access indefinitely, even after the account is removed or its permissions are reduced.

CVSS severity6.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session management in Gatling Enterprise before 1.25.0 allows remote authenticated users to retain application access after logout. The stateless session mechanism accepts the existing session-id cookie after logout and never invalidates it unless the encryption secret changes. Possession of a previously authenticated cookie preserves application access indefinitely, even after the account is removed or its permissions are reduced.

The record

CVE
CVE-2025-51306
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1259, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-1259Improper Restriction of Security Token Assignment
T1550.004Use Alternate Authentication Material: Web Session Cookie

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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