CVE-2026-59096 (GCVE-0-2026-59096)

Vulnerability from cvelistv5 – Published: 2026-07-02 19:41 – Updated: 2026-07-02 19:41 X_Open Source
VLAI?
Title
Dapr - OIDC Discovery Issuer and JWKS URI Injection via Unvalidated X-Forwarded-Host
Summary
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 list is configured (the default), and serves the document with a one-hour public cache lifetime. A remote unauthenticated attacker can poison the discovery document so relying parties performing dynamic (unpinned) discovery fetch the JWKS from an attacker-controlled server, causing attacker-signed JWTs to be accepted. Exploitation requires the OIDC server enabled without a configured jwt-issuer or oidc-allowed-hosts.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-346 - Origin Validation Error
Assigner
References
Impacted products
Vendor Product Version
dapr dapr Affected: 1.17.0 (semver)
Affected: 1.18.0 (semver)
Create a notification for this product.
Credits
George Chen
Show details on NVD website
To clipboard 

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            "confidentialityImpact": "NONE",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.