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Not in CISA KEV
HIGH severity

CVE-2026-1758

HIGH

CVE-2026-1758 is a high-severity (CVSS 8.3) CWE-384 vulnerability. O3 Security confirms whether CVE-2026-1758 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Session fixation vulnerability in Secomea GateManager (webserver module) allows Session Fixation. This issue affects GateManager: 11.5;0, 11.4.625515072:0. Fixed in Version 11.6…

Published
Sep 15, 2026
Updated
Sep 15, 2026
Affected
0 pkgs
Patched
None yet
Exploits
None indexed
Exploitation data as of Sep 15, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-1758.

Description

Session fixation vulnerability in Secomea GateManager (webserver module) allows Session Fixation.

This issue affects GateManager: 11.5;0, 11.4.625515072:0.

Fixed in Version 11.6 or 11.4.626194074 and above

Detection & mitigation playbook

Vulnerability
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Remediation status

    No patched version of the affected component has shipped for CVE-2026-1758 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2026-1758 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2026-1758. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Session fixation vulnerability in Secomea GateManager (webserver module) allows Session Fixation. This issue affects GateManager: 11.5;0, 11.4.625515072:0. Fixed in Version 11.6 or 11.4.626194074 and above
O3 Security · Impact-Aware SCA

Is CVE-2026-1758 in your dependencies?

O3 detects CVE-2026-1758 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

CVE-2026-1758: High 8.3 severity | O3 Security