TI-2026-47520 Aliases CVE-2026-67198 GHSA-pr84-483f-rmg2

Perspective 5.0.0 DoS via VirtualServer Protocol Dispatcher

HIGH 77CWE-616Published 2026-08-04 · Updated 2026-08-04

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Perspective 5.0.0 contains a denial-of-service vulnerability in the VirtualServer protocol dispatcher that allows unauthenticated remote attackers to crash the server process by sending malformed or incomplete protobuf messages. Attackers can send well-formed requests such as ViewToArrowReq with no viewport set or MakeTableReq with no data field to trigger unwrap() calls on None values at nine distinct sites, causing the process to abort with SIGABRT.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00295 22nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
perspective-dev	perspective	up to 5.0.0	—	No fix listed	CNA

perspective Vendorperspective-dev Affected up to 5.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-67198
2026-10-03 Alias added: GHSA-pr84-483f-rmg2

References

Exploit 1

Researcher Disclosure

TI-2026-47522 Perspective 5.0.0 Path Traversal via cwd_static_file_handler CVSS 4.0HIGH 8.7
TI-2026-47518 Perspective 5.0.0 RCE via eval() Expression Injection CVSS 4.0HIGH 8.7
TI-2026-47521 Perspective 5.0.0 DoS via Loop Expression Evaluation CVSS 4.0HIGH 7.1
TI-2026-47519 Perspective 5.0.0 XSS via Debug Plugin innerHTML Interpolation CVSS 4.0MEDIUM 5.1

Sources

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