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CVE-2026-33591

10.0
Critical
EPSS 0.52%Patch availableAug 3, 2026

Unauthenticated token retrieval enables session takeover on Wapt Server.

common questions

Is CVE-2026-33591 being exploited?

Not confirmed. CVE-2026-33591 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.52% probability of exploitation in the next 30 days.

How severe is CVE-2026-33591?

CVE-2026-33591 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-33591?

Yes. A fix has been recorded for CVE-2026-33591. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-33591 affect?

CVE-2026-33591 affects Wapt Server < 2.6.1.17813. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-33591?

Upgrade to Wapt Server 2.6.1.17813+, rotate session tokens and admin credentials.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Wapt Server < 2.6.1.17813
impact

Remote unauthenticated attacker can bypass auth to retrieve valid session tokens, enabling account takeover and remote admin access.

action required

Immediate action required

affected versions
Tranquil IT Systems WAPT Server
  • affected>= 2.6.0.16767 and <= 2.6.1.17787

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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