What is CVE-2021-34824?

CVE-2021-34824 is a high-severity vulnerability in Istio. CVSS score: 8.8/10. Published 2021-06-29.

How severe is CVE-2021-34824?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-34824 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Istio

CVE-2021-34824

Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.

EPSS: 0.020 (78.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Istio
N/a — versions n/a

Public proof-of-concept exploits

rsalmond/CVE-2021-34824

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-34824?: CVE-2021-34824 is a high-severity vulnerability in Istio. CVSS score: 8.8/10. Published 2021-06-29.
How severe is CVE-2021-34824?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-34824 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.