CVE-2021-31920
- Source
- https://cve.org/CVERecord?id=CVE-2021-31920
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31920.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-31920
- Downstream
- Published
- 2021-05-27T05:15:06.880Z
- Modified
- 2026-07-08T21:26:50.894501Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Git / github.com/istio/istio
Affected ranges
- Type
- GIT
- Repo
- https://github.com/istio/istio
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.8.6" }, { "introduced": "1.9.0" }, { "fixed": "1.9.5" } ], "source": "CPE_RANGE" }
Affected versions
0.*
0.3.0
0.5.0
0.6.0
1.*
1.0.0-snapshot.0
1.1.0-snapshot.2
1.1.0.snapshot.0
1.1.0.snapshot.1
1.2.0-rc.0
1.2.0-rc.3
1.5.0-alpha.0
1.5.0-beta.1
1.5.0-beta.2
1.6.0-alpha.0
1.6.0-alpha.1
1.6.0-alpha.2
1.7.0-alpha.0
1.8.0
1.8.0-alpha.0
1.8.0-alpha.2
1.8.0-rc.0
1.8.0-rc.1
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
1.9.1
1.9.2
1.9.4