Is CVE-2026-67199 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-67199 being exploited in the wild.

How severe is CVE-2026-67199?

Medium severity, with a CVSS score of 6.5, published 4 August 2026.

Is there a fix for CVE-2026-67199?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-67199 attacked?

It is attacked over the network.

Am I affected by CVE-2026-67199?

Check whether you run Perspective at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-67199: Perspective DoS via unbounded loop in expression evaluation

CVE-2026-67199 · Severity: medium · CVSS 6.5 · Published 2026-08-04

Perspective is an interactive analytics and data visualization platform used in internal dashboards at financial institutions. A denial-of-service vulnerability allows remote attackers with basic access to block the server indefinitely by submitting a crafted expression containing unbounded loops, rendering the entire service unresponsive to all connected users.

Technologies: Perspective. Vendors: Perspective.

Quick answers

Is CVE-2026-67199 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-67199 being exploited in the wild.
How severe is CVE-2026-67199?: Medium severity, with a CVSS score of 6.5, published 4 August 2026.
Which products and versions are affected?: Perspective 5.0.0.
Is there a fix for CVE-2026-67199?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-67199 attacked?: It is attacked over the network.
Am I affected by CVE-2026-67199?: Check whether you run Perspective at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in Perspective 5.0.0's expression column evaluation mechanism, which processes user-supplied formulas on a per-row basis within TableMakeViewReq messages. Attackers can craft expressions containing unbounded for or while loops with arbitrarily large iteration counts. When evaluated, these expressions block the Tornado IOLoop without any iteration cap, deadline, or cancellation mechanism (CWE-770: Allocation of Resources Without Limits or Throttling). The attack requires authenticated access (PR:L) but causes server-wide unavailability. No patch information is currently available.

Affected products

Perspective Perspective 5.0.0

Timeline

2026-08-04: disclosed
2026-08-04: advisory

References

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