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CVE-2019-14993

Istio ReDoS Vulnerability

7.5 HighFix available

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.27%Up 1.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
CVE-2019-14993
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-185
Updated
2026-11-02
CVE List No score

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
CVE-2019-14993
Updated
2026-11-02
EUVDEUVD-2022-4952 No score

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
EUVD-2022-4952
Updated
2026-11-03
GitHub AdvisoriesGHSA-qcvw-82hh-gq38 7.5

Istio ReDoS Vulnerability

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
GHSA-qcvw-82hh-gq38
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-185
Updated
2026-11-02
OSV 7.5

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
CVE-2019-14993
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGHSA-qcvw-82hh-gq38 7.5

Istio ReDoS Vulnerability

Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.

Record
GHSA-qcvw-82hh-gq38
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-185
Updated
2026-11-02
OSVRHEA-2020:1416 7.5

Red Hat Enhancement Advisory: Red Hat OpenShift Service Mesh 1.1.0 RPMs

Record
RHEA-2020:1416
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
istio.io/istio
Go
 before 1.1.13
1.1.13
istio.io/istio
Go
 1.2.0 up to 1.2.4
1.2.4
kiali
Red Hat:service_mesh:1.1::el7
From an advisory covering 2 CVEs
 before 0:v1.12.7.redhat1-1.el7
0:v1.12.7.redhat1-1.el7
ior
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-3.el8
0:1.1.0-3.el8
servicemesh
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-citadel
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-cni
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-3.el8
0:1.1.0-3.el8
servicemesh-galley
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-grafana
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:6.4.3-2.el8
0:6.4.3-2.el8
servicemesh-grafana-prometheus
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:6.4.3-2.el8
0:6.4.3-2.el8
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Affected packages
PackageAffectedFixed
servicemesh-istioctl
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-mixc
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-mixs
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-operator
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-9.el8
0:1.1.0-9.el8
servicemesh-pilot-agent
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-pilot-discovery
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8
servicemesh-prometheus
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:2.14.0-3.el8
0:2.14.0-3.el8
servicemesh-proxy
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-4.el8
0:1.1.0-4.el8
servicemesh-sidecar-injector
Red Hat:service_mesh:1.1::el8
From an advisory covering 2 CVEs
 before 0:1.1.0-5.el8
0:1.1.0-5.el8

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-14993 is a high vulnerability (CVSS 7.5) in Istio, published August 13, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. Fixed in istio.io/istio 1.1.13.

References

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