CVEvulnerability
CVE-2020-8595
7.3 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-02-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-287
Description
Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.
Affected configurations
• istio istio (>= 1.3 <= 1.3.7)
• istio istio (>= 1.4.0 <= 1.4.3)
• redhat openshift service mesh 1.0
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
- https://access.redhat.com/security/cve/cve-2020-8595 Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 Issue Tracking, Mitigation, Third Party Advisory
- https://github.com/istio/istio/commits/master Patch
- https://istio.io/news/security/ Vendor Advisory
- https://istio.io/news/security/istio-security-2020-001/ Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
- https://access.redhat.com/security/cve/cve-2020-8595 Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 Issue Tracking, Mitigation, Third Party Advisory
- https://github.com/istio/istio/commits/master Patch
- https://istio.io/news/security/ Vendor Advisory
- https://istio.io/news/security/istio-security-2020-001/ Patch, Vendor Advisory