CVE-2026-59096

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-02. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
15.8%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 6, 2026

Advisory Details (4)

Auto-updated Jul 6, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

Dapr - OIDC Discovery Issuer and JWKS URI Injection via Unvalidated X-Forwarded-Host | Advisories | VulnCheck

https://www.vulncheck.com/advisories/dapr-oidc-discovery-issuer-and-jwks-uri-injection-via-unvalidated-x-forwarded-host
github_pr

[Backport release-1.18] Sentry: fix OIDC X-Forwarded-Host issuer/jwks_uri injection

Fix merged in dapr/dapr PR #10029 on 2026-05-27 — awaiting tagged release

https://github.com/dapr/dapr/pull/10029
github_pr

[Backport release-1.17] Sentry: fix OIDC X-Forwarded-Host issuer/jwks_uri injection

Fix merged in dapr/dapr PR #10028 on 2026-05-28 — awaiting tagged release

https://github.com/dapr/dapr/pull/10028
github_pr

Sentry: fix OIDC X-Forwarded-Host issuer/jwks_uri injection

Fix merged in dapr/dapr PR #10027 on 2026-05-27 — awaiting tagged release

https://github.com/dapr/dapr/pull/10027

Vendor Advisories for CVE-2026-59096(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 27× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 06:20 UTCEG score recompute
  2. 2026-07-07 06:20 UTCGHSA enrichment
  3. 2026-07-06 17:17 UTCEG score recompute
  4. 2026-07-06 17:17 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 14:21 UTCMITRE cvelistV5CVSS v4 → 8.2
  8. 2026-07-06 04:12 UTCEG score recompute
  9. 2026-07-06 04:11 UTCGHSA enrichment
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-05 15:09 UTCEG score recompute
  13. 2026-07-05 15:09 UTCGHSA enrichment
  14. 2026-07-05 02:31 UTCEPSS rescore
  15. 2026-07-05 02:30 UTCEPSS rescore
  16. 2026-07-05 02:09 UTCEG score recompute
  17. 2026-07-05 02:09 UTCGHSA enrichment
  18. 2026-07-04 13:08 UTCEG score recompute
  19. 2026-07-04 13:08 UTCGHSA enrichment
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-04 00:08 UTCEG score recompute
  23. 2026-07-04 00:07 UTCGHSA enrichment
  24. 2026-07-03 11:07 UTCEG score recompute
  25. 2026-07-03 11:07 UTCGHSA enrichment
Show 2 more
  1. 2026-07-02 22:06 UTCEG score recompute
  2. 2026-07-02 22:06 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59096?
CVE-2026-59096 is a high vulnerability published on July 2, 2026. 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…
When was CVE-2026-59096 disclosed?
CVE-2026-59096 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59096 actively exploited?
CVE-2026-59096 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59096?
CVE-2026-59096 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-59096?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59096, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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