What’s Vulnerable › Vulnerabilities

CVE-2023-43799: The Altair Desktop Client Does Not Sanitize External URLs before passing them to the underlying system

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-04 · updated 2026-06-17
• Weakness: CWE-20

Description

Altair is a GraphQL Client. Prior to version 5.2.5, the Altair GraphQL Client Desktop Application does not sanitize external URLs before passing them to the underlying system. Moreover, Altair GraphQL Client also does not isolate the context of the renderer process. This affects versions of the software running on MacOS, Windows, and Linux. Version 5.2.5 fixes this issue.

Affected products

• altair-graphql altair: before 5.2.5 — fixed in 5.2.5

How to fix

Upgrade to a fixed version: altair-graphql altair 5.2.5. Check the vendor advisory for mitigations.

References

• https://github.com/altair-graphql/altair/releases/tag/v5.2.5
• https://github.com/altair-graphql/altair/security/advisories/GHSA-9m5v-vrf6-fmvm
• https://github.com/altair-graphql/altair/releases/tag/v5.2.5
• https://github.com/altair-graphql/altair/security/advisories/GHSA-9m5v-vrf6-fmvm

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