istio records
29 published records for vendor istio.
Researcher profile
- Entered KEV
- 2 · 6.9%
- Weaponized
- 2 · 6.9%
- Pre-auth RCE
- 1
- With a fix record
- 72.4%
- Median publish → KEV
- 3 days
Recurring classes
- CWE-863 Incorrect Authorization4
- CWE-400 Uncontrolled Resource Consumption3
- CWE-476 NULL Pointer Dereference3
- CWE-185 Incorrect Regular Expression2
- CWE-287 Improper Authentication2
- CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')2
The weakness classes this vendor ships most often: where to look.
CWEAll records
29 records| Action | CVE | Vulnerability | Severity | KEV | EPSS | Published |
|---|---|---|---|---|---|---|
91Now | CVE-2026-111497Weaponized | Out-of-Bounds Write in Google Brotli Decodergoogle · brotli · CWE-252 | Critical9.2 | KEV | 82.6% | Oct 22, 2026 |
90Now | CVE-2023-44487Weaponized | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, assiemens · simatic s7-1500 cpu 1518f-4 pn\/dp mfp firmware · CWE-400 | High7.5 | KEV | 99.9% | Oct 10, 2023 |
39Monitor | CVE-2021-31921No exploit | Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected serviistio · istio · CWE-862 | Critical9.8 | — | 1.4% | Jun 2, 2021 |
39Monitor | CVE-2022-31045No exploit | Ill-formed headers may lead to unexpected behavior in Istioistio · istio · CWE-125 | Critical9.8 | — | 1.1% | Jun 9, 2022 |
39Monitor | CVE-2022-21679No exploit | Authorization Policy bypass in Istioistio · istio · CWE-670 | Critical9.8 | — | 1.0% | Jan 19, 2022 |
36Monitor | CVE-2021-34824Proof of concept | 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 Deistio · istio | High8.8 | — | 1.9% | Jun 29, 2021 |
35Monitor | CVE-2022-21701No exploit | Privileged Escalation in Istioistio · istio · CWE-863 | High8.8 | — | 0.7% | Jan 19, 2022 |
34Monitor | CVE-2026-31837No exploit | Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.istio · istio · CWE-200 | High8.7 | — | 0.4% | Mar 10, 2026 |
31Monitor | CVE-2020-10739No exploit | Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a specialistio · istio · CWE-476 | High7.5 | — | 2.3% | Jun 2, 2020 |
31Monitor | CVE-2019-14993No exploit | 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 JWistio · istio · CWE-185 | High7.5 | — | 2.2% | Aug 13, 2019 |
31Monitor | CVE-2019-12995No exploit | Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy.istio · istio · CWE-476 | High7.5 | — | 2.1% | Jun 28, 2019 |
31Monitor | CVE-2019-18836No exploit | Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keepenvoyproxy · envoy · CWE-835 | High7.5 | — | 1.9% | Nov 10, 2019 |
30Monitor | CVE-2020-8595No exploit | Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass.istio · istio · CWE-287 | High7.3 | — | 2.6% | Feb 12, 2020 |
30Monitor | CVE-2022-23635No exploit | Unauthenticated control plane denial of service attack in Istioistio · istio · CWE-287 | High7.5 | — | 1.6% | Feb 22, 2022 |
30Monitor | CVE-2022-24726No exploit | Unauthenticated control plane denial of service attack in Istioistio · istio · CWE-400 | High7.5 | — | 1.5% | Mar 10, 2022 |
30Monitor | CVE-2022-39278No exploit | Istio vulnerable to denial of service attack due to Golang Regex Libraryistio · istio · CWE-400 | High7.5 | — | 1.4% | Oct 13, 2022 |
30Monitor | CVE-2021-39155No exploit | Authorization Policy Bypass Due to Case Insensitive Host Comparisonistio · istio · CWE-178 | High7.5 | — | 1.2% | Aug 24, 2021 |
30Monitor | CVE-2019-18817No exploit | Istio 1.3.x before 1.3.5 allows Denial of Service because continue_on_listener_filters_timeout is set to True, a related issue to CVE-2019-1istio · istio · CWE-835 | High7.5 | — | 1.2% | Nov 12, 2019 |
30Monitor | CVE-2021-39156Proof of concept | Fragments in Path May Lead to Authorization Policy Bypassistio · istio · CWE-863 | High7.5 | — | 1.1% | Aug 24, 2021 |
30Monitor | CVE-2019-12243No exploit | Istio 1.1.x through 1.1.6 has Incorrect Access Control.istio · istio | High7.5 | — | 1.1% | Jun 5, 2019 |
30Monitor | CVE-2026-41413No exploit | Istio Vulnerable to SSRF via RequestAuthentication jwksUriistio · istio · CWE-918 | High7.7 | — | 0.3% | May 7, 2026 |
29Monitor | CVE-2020-8843No exploit | An issue was discovered in Istio 1.3 through 1.3.6.istio · istio · CWE-20 | High7.4 | — | 1.0% | Feb 14, 2020 |
27Monitor | CVE-2020-16844No exploit | In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcaistio · istio | Medium6.8 | — | 1.0% | Oct 1, 2020 |
27Monitor | CVE-2026-31838No exploit | Istio HTTP debug endpoints on port 15014 to enforce namespace-based authorization, preventing cross-namespace proxy data access.istio · istio · CWE-863 | Medium6.9 | — | 0.2% | Mar 10, 2026 |
26Monitor | CVE-2019-25014No exploit | A NULL pointer dereference was found in pkg/proxy/envoy/v2/debug.go getResourceVersion in Istio pilot before 1.5.0-alpha.0.istio · istio · CWE-476 | Medium6.5 | — | 1.3% | Jan 29, 2021 |
- CVE-2026-11149791Now
Out-of-Bounds Write in Google Brotli Decoder
CriticalCVSS 9.2KEVWeaponizedEPSS 82%google · brotliOct 22, 2026
- CVE-2023-4448790Now
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as
HighCVSS 7.5KEVWeaponizedEPSS 99%siemens · simatic s7-1500 cpu 1518f-4 pn\/dp mfp firmwareOct 10, 2023
- CVE-2021-3192139Monitor
Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected servi
CriticalCVSS 9.8No exploitEPSS 1%istio · istioJun 2, 2021
- CVE-2022-3104539Monitor
Ill-formed headers may lead to unexpected behavior in Istio
CriticalCVSS 9.8No exploitEPSS 1%istio · istioJun 9, 2022
- CVE-2022-2167939Monitor
Authorization Policy bypass in Istio
CriticalCVSS 9.8No exploitEPSS 1%istio · istioJan 19, 2022
- CVE-2021-3482436Monitor
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 De
HighCVSS 8.8Proof of conceptEPSS 1%istio · istioJun 29, 2021
- CVE-2022-2170135Monitor
Privileged Escalation in Istio
HighCVSS 8.8No exploitEPSS 0%istio · istioJan 19, 2022
- CVE-2026-3183734Monitor
Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.
HighCVSS 8.7No exploitEPSS 0%istio · istioMar 10, 2026
- CVE-2020-1073931Monitor
Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a special
HighCVSS 7.5No exploitEPSS 2%istio · istioJun 2, 2020
- CVE-2019-1499331Monitor
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 JW
HighCVSS 7.5No exploitEPSS 2%istio · istioAug 13, 2019
- CVE-2019-1299531Monitor
Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy.
HighCVSS 7.5No exploitEPSS 2%istio · istioJun 28, 2019
- CVE-2019-1883631Monitor
Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keep
HighCVSS 7.5No exploitEPSS 1%envoyproxy · envoyNov 10, 2019
- CVE-2020-859530Monitor
Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass.
HighCVSS 7.3No exploitEPSS 2%istio · istioFeb 12, 2020
- CVE-2022-2363530Monitor
Unauthenticated control plane denial of service attack in Istio
HighCVSS 7.5No exploitEPSS 1%istio · istioFeb 22, 2022
- CVE-2022-2472630Monitor
Unauthenticated control plane denial of service attack in Istio
HighCVSS 7.5No exploitEPSS 1%istio · istioMar 10, 2022
- CVE-2022-3927830Monitor
Istio vulnerable to denial of service attack due to Golang Regex Library
HighCVSS 7.5No exploitEPSS 1%istio · istioOct 13, 2022
- CVE-2021-3915530Monitor
Authorization Policy Bypass Due to Case Insensitive Host Comparison
HighCVSS 7.5No exploitEPSS 1%istio · istioAug 24, 2021
- CVE-2019-1881730Monitor
Istio 1.3.x before 1.3.5 allows Denial of Service because continue_on_listener_filters_timeout is set to True, a related issue to CVE-2019-1
HighCVSS 7.5No exploitEPSS 1%istio · istioNov 12, 2019
- CVE-2021-3915630Monitor
Fragments in Path May Lead to Authorization Policy Bypass
HighCVSS 7.5Proof of conceptEPSS 1%istio · istioAug 24, 2021
- CVE-2019-1224330Monitor
Istio 1.1.x through 1.1.6 has Incorrect Access Control.
HighCVSS 7.5No exploitEPSS 1%istio · istioJun 5, 2019
- CVE-2026-4141330Monitor
Istio Vulnerable to SSRF via RequestAuthentication jwksUri
HighCVSS 7.7No exploitEPSS 0%istio · istioMay 7, 2026
- CVE-2020-884329Monitor
An issue was discovered in Istio 1.3 through 1.3.6.
HighCVSS 7.4No exploitEPSS 1%istio · istioFeb 14, 2020
- CVE-2020-1684427Monitor
In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildca
MediumCVSS 6.8No exploitEPSS 1%istio · istioOct 1, 2020
- CVE-2026-3183827Monitor
Istio HTTP debug endpoints on port 15014 to enforce namespace-based authorization, preventing cross-namespace proxy data access.
MediumCVSS 6.9No exploitEPSS 0%istio · istioMar 10, 2026
- CVE-2019-2501426Monitor
A NULL pointer dereference was found in pkg/proxy/envoy/v2/debug.go getResourceVersion in Istio pilot before 1.5.0-alpha.0.
MediumCVSS 6.5No exploitEPSS 1%istio · istioJan 29, 2021