What is CVE-2023-43799?

CVE-2023-43799 is a medium-severity vulnerability in Altair-Graphql Altair, classified under Improper Input Validation. CVSS score: 5.0/10. Published 2023-10-04.

How severe is CVE-2023-43799?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Improper input validation in Altair-Graphql Altair

CVE-2023-43799

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Altair-Graphql Altair — versions < 5.2.5
Altairgraphql Altair
Apple macOS
Linux Kernel
Microsoft Windows

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/altair-graphql/altair/security/advisories/GHSA-9m5v-vrf6-fmvm (Vendor Advisory)
github.com/altair-graphql/altair/releases/tag/v5.2.5 (Release Notes)

Frequently asked questions

What is CVE-2023-43799?: CVE-2023-43799 is a medium-severity vulnerability in Altair-Graphql Altair, classified under Improper Input Validation. CVSS score: 5.0/10. Published 2023-10-04.
How severe is CVE-2023-43799?: Medium severity. CVSS v3 base score is 5.0 out of 10.