CVE-2026-67198
highpriority · track · 0EPSS 0.003 · 22 %ileEUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://christbowel.com/blog/perspective-5-0-0-five-cves/cnnvd
- https://github.com/perspective-dev/perspective/releasesPatchcnnvd
- https://www.vulncheck.com/advisories/perspective-dos-via-virtualserver-protocol-dispatchercnnvd
- https://christbowel.com/blog/perspective-5-0-0-five-cves/enisa_euvd
- https://www.vulncheck.com/advisories/perspective-dos-via-virtualserver-protocol-dispatcherenisa_euvd
- https://christbowel.com/blog/perspective-5-0-0-five-cves/nvd
- https://www.vulncheck.com/advisories/perspective-dos-via-virtualserver-protocol-dispatchernvd
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