What is CVE-2026-42794?

CVE-2026-42794 is a medium-severity vulnerability in Absinthe-graphql Absinthe.plug, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-08.

How severe is CVE-2026-42794?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Absinthe-graphql Absinthe.plug

CVE-2026-42794

Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface. 'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinth…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Absinthe-graphql Absinthe.plug
Absinthe-graphql Absinthe_plug — versions 1.2.0, 26241817cb4b9be4de3f5972c5fba3d36de3d713

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

6b3ad84c-e1a6-4bf7-a703-f496b71e49db (vendor-advisory, Issue Tracking)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Third Party Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Third Party Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (Patch, patch)

Frequently asked questions

What is CVE-2026-42794?: CVE-2026-42794 is a medium-severity vulnerability in Absinthe-graphql Absinthe.plug, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-08.
How severe is CVE-2026-42794?: Medium severity. CVSS v3 base score is 6.1 out of 10.