What is CVE-2026-43967?

CVE-2026-43967 is a high-severity vulnerability in Absinthe-graphql Absinthe, classified under Inefficient Algorithmic Complexity. CVSS score: 7.5/10. Published 2026-05-08.

How severe is CVE-2026-43967?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Absinthe-graphql Absinthe

CVE-2026-43967

Inefficient Algorithmic Complexity vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via quadratic fragment-name uniqueness validation. 'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/…

EPSS: 0.001 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Absinthe-graphql Absinthe — versions 1.2.0, 0b46e3bcc06c0d3797bacd64761b908a84646c1d

Weakness classification (CWE)

CWE-407 — Inefficient Algorithmic Complexity

References

6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Exploit, vendor-advisory, Vendor Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Patch, 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-2026-43967?: CVE-2026-43967 is a high-severity vulnerability in Absinthe-graphql Absinthe, classified under Inefficient Algorithmic Complexity. CVSS score: 7.5/10. Published 2026-05-08.
How severe is CVE-2026-43967?: High severity. CVSS v3 base score is 7.5 out of 10.