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TI-2026-01133 Aliases CVE-2026-1435GHSA-3crm-x896-j73p

Incorrect management of session invalidation vulnerability in Graylog Web Interface

Priority MEDIUM 48CWE-613Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-613.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Graylog2Graylog Web Interface2.2.3—No fix listedCNA
  • Graylog Web Interface VendorGraylog2 Affected 2.2.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:graylog:graylog:2.2.3:*:*:*:*:*:*:*2.2.3VulnerableGraylog2
  • cpe:2.3:a:graylog:graylog:2.2.3:*:*:*:*:*:*:* Versions 2.2.3 Vulnerable ·Graylog2

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1435
  2. 2026-10-03 Alias added: GHSA-3crm-x896-j73p

References

Patch 1

  • TI-2024-16341 graylog2-server vulnerable to instantiation of arbitrary classes triggered by API request CVSS 3.1HIGH 8.8
  • TI-2023-21671 Insecure source port usage for DNS queries in Graylog CVSS 3.1MEDIUM 5.3
  • TI-2023-21667 User session is still usable after logout in graylog2-server CVSS 3.1LOW 3.1
  • TI-2021-15624 A Session ID leak in the audit log in Graylog before 4.1.2 allows attackers to escalate… CVSS 3.1CRITICAL 9.8
  • TI-2021-15623 A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to… CVSS 3.1CRITICAL 9.8
  • TI-2025-33099 Graylog vulnerable to privilege escalation through API tokens CVSS 4.0HIGH 8.8
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences