There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and chunked encoding
Published Mar 23, 2020
9.8
CRITICALCVSS 3.1
EPSS 3.17%
Description
There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and chunked encoding. Upgrade to versions 7.1.9 and 8.0.6 or later versions.
Affected products
- Vendor n/a Product Apache Traffic Server Defaultn/a
- Version Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Apache Traffic Server | n/a |
|
Configuration 1
- ≥ 6.0.0 · ≤ 6.2.3
- ≥ 7.0.0 · ≤ 7.1.8
- ≥ 8.0.0 · ≤ 8.0.5
Configuration 2
- 10.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.17% (0.03166) | 87.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.09% (0.03088) | 85.96th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.21% (0.01208) | 78.38th | v4 (v2025.03.14) |
| Nov 18, 2025 | 4.87% (0.04873) | 88.49th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.21% (0.01208) | 77.10th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.48% (0.03481) | 79.05th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.21% (0.01208) | 77.58th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00235) | 62.43th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.24% (0.00235) | 61.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00235) | 59.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.82% (0.07819) | 84.70th | v1 |
| Jan 6, 2022 | 7.82% (0.07819) | 84.53th | v1 |
| Sep 1, 2021 | 1.85% (0.01855) | 75.73th | v1 |
| Apr 14, 2021 | 1.85% (0.01855) | 0.00th | v1 |
References (2)
- https://lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f7694c43869%40%3Cannounce.trafficserver.apache.org%3E x_refsource_MISCMailing ListVendor Advisory
- https://www.debian.org/security/2020/dsa-4672 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f7694c43869%40%3Cannounce.trafficserver.apache.org%3E | x_refsource_MISCMailing ListVendor Advisory | |
| https://www.debian.org/security/2020/dsa-4672 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.