CVE-2020-8843 affects Istio versions 1.3 through 1.3.6, allowing for a bypass of specifically configured Mixer policies. An attacker can manipulate policy decisions by injecting a crafted x-istio-attributes header at ingress, specifically by encoding a source.uid. This vulnerability carries a CVSS score of 7.4 (High), indicating a network-based attack with high impact on confidentiality and integrity, though with high attack complexity. While the feature enabling this exploit is disabled by default in affected versions, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.3.0, <= 1.3.6CPE matchmatch criteria | cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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