VDB
CVE-2021-31920
CVE-2021-31920
PUBLISHED
CVSS 6.5 MEDIUM
Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.
EPSS 1.32% · 70.5th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
1.32%
70.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| istio.io | istio | 0, 1.9.0 |
| istio | istio | 1.9.0, 0 |
| n/a | n/a | * |
Timeline
- May 27, 2021 CVE Published
- May 27, 2021 EPSS Score
- Jun 8, 2021 EPSS Score
- Jun 13, 2021 EPSS Score
- Sep 30, 2021 EPSS Score
- Dec 1, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 1, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 4, 2022 EPSS Score
- Jun 5, 2022 EPSS Score
- Aug 7, 2022 EPSS Score