Widely used Spring for GraphQL framework; high-severity WebSocket hijack could impact many apps and data.
CVE-2026-41700
WebSocket CSRF-like hijack in Spring for GraphQL allows ops as victim.
Is CVE-2026-41700 being exploited?
Not confirmed. CVE-2026-41700 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.19% probability of exploitation in the next 30 days.
How severe is CVE-2026-41700?
CVE-2026-41700 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-41700?
Yes. A fix has been recorded for CVE-2026-41700. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-41700 affect?
CVE-2026-41700 affects Spring for GraphQL 2.0.x (2.0.0-2.0.3), Spring for GraphQL 1.4.x (1.4.0-1.4.5), Spring for GraphQL 1.3.x (1.3.0-1.3.8), Spring for GraphQL 1.0.x (1.0.0-1.0.6). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-41700?
Upgrade to patched Spring for GraphQL; limit WebSocket exposure; enforce auth
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can execute arbitrary GraphQL operations using the victim's session via a malicious page, potentially data exposure and manipulation.
Patch when possible
- affected>= 2.0.0 and < 2.0.3.1
- affected>= 1.4.0 and < 1.4.5.1
- affected>= 1.3.0 and < 1.3.9
- affected>= 1.0.0 and < 1.0.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.