HIGH
Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy
Published Jun 28, 2019
7.5
HIGHCVSS 3.0
EPSS 2.19%
Description
Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.19% 0.02193
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.02193
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.19% (0.02193) | 81.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.19% (0.02193) | 80.05th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.40% (0.00397) | 73.73th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.40% (0.00397) | 73.60th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00290) | 68.16th | v3 (v2023.03.01) |
| May 2, 2023 | 0.29% (0.00290) | 64.37th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.21% (0.00211) | 57.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00176) | 52.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.74% (0.05736) | 77.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
Weaknesses (1)
References (3)
- https://github.com/istio/istio.io/pull/4555 x_refsource_MISCThird Party Advisory
- https://github.com/istio/istio/issues/15084 x_refsource_MISCThird Party Advisory
- https://istio.io/about/notes/ x_refsource_MISCRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/istio/istio.io/pull/4555 | x_refsource_MISCThird Party Advisory | |
| https://github.com/istio/istio/issues/15084 | x_refsource_MISCThird Party Advisory | |
| https://istio.io/about/notes/ | x_refsource_MISCRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 28, 2019
Updated Aug 4, 2024
Reserved Jun 28, 2019
Link CVE-2019-12995
CISA Vulnrichment
Updated n/a