What is CVE-2026-59096?

CVE-2026-59096 is a high-severity vulnerability in Dapr, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2026-07-02.

How severe is CVE-2026-59096?

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

Vulnerability in Dapr

CVE-2026-59096

Dapr Sentry's OIDC discovery endpoint derives the issuer and jwks_uri of the /.well-known/openid-configuration document from the request Host, honoring an attacker-controlled X-Forwarded-Host header without validation when no allowed-hosts…

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:H/A:N.

Affected products

Dapr — versions 1.17.0, 1.18.0

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-59096?: CVE-2026-59096 is a high-severity vulnerability in Dapr, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2026-07-02.
How severe is CVE-2026-59096?: High severity. CVSS v3 base score is 7.5 out of 10.