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Vulnerability details: VCID-rw58-bnwt-2bam
Vulnerability ID VCID-rw58-bnwt-2bam
Aliases CVE-2023-38522
Summary Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers. This can be utilized for request smuggling and may also lead cache poisoning if the origin servers are vulnerable. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.10, from 9.0.0 through 9.2.4. Users are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes the issue.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
System Score Found at
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
epss 0.00364 https://api.first.org/data/v1/epss?cve=CVE-2023-38522
cvssv3.1 7.5 https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
ssvc Track https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-38522
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38522
1077141 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1077141
c4mcmpblgl8kkmyt56t23543gp8v56m0 https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-07-26T13:37:29Z/ Found at https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
Exploit Prediction Scoring System (EPSS)
Percentile 0.58458
EPSS Score 0.00364
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:36:41.415783+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0