CRITICAL🇵🇱 Wersja polska

CVE-2026-1435

CVSS 9.3v4.0pub. 2026-02-18

Not properly invalidated session vulnerability in Graylog Web Interface, version 2.2.3, due to incorrect management of session invalidation after new logins. The application generates a new 'sessionId' each time a user authenticates, but does not invalidate previously issued session identifiers, which remain valid even after multiple consecutive logins by the same user. As a result, a stolen or leaked 'sessionId' can continue to be used to authenticate valid requests. Exploiting this vulnerability would allow an attacker with access to the web service/API network (port 9000 or HTTP/S endpoint of the server) to reuse an old session token to gain unauthorized access to the application, interact with the API/web, and compromise the integrity of the affected account.

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • Graylog

    APP
    Graylog
    2.2.3
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE
References

Related vulnerabilities

CVE-2021-37759CRITICAL9.8ten sam produkt

A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to th...

CVE-2021-37760CRITICAL9.8ten sam produkt

A Session ID leak in the audit log in Graylog before 4.1.2 allows attackers to escalate privileges (to the acc...

CVE-2026-1436HIGH7.1ten sam produkt

Improper Access Control (IDOR) in the Graylog API, version 2.2.3, which occurs when modifying the user ID in t...

CVE-2025-53106HIGH8.8ten sam produkt

Graylog is a free and open log management platform. In versions 6.2.0 to before 6.2.4 and 6.3.0-alpha.1 to bef...

CVE-2025-46827HIGH8.0ten sam produkt

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possibl...