CVE-2026-58156
published 2026-07-29CVE-2026-58156: Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass. This issue affects Apache Traffic Server: from 8.0.0…
PriorityP431medium4.9CVSS 3.1
AVNACHPRLUINSCCLILAN
EPSS
0.39%
30.6th percentile
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | traffic_server | >= 10.0.0 < 10.1.4 | 10.1.4 |
| apache | traffic_server | 8.0.0 – 8.1.9 | — |
| apache | traffic_server | >= 9.0.0 < 9.2.15 | 9.2.15 |
| apache_software_foundation | apache_traffic_server | 10.0.0 – 10.1.3 | — |
| apache_software_foundation | apache_traffic_server | 8.0.0 – 8.1.11 | — |
| apache_software_foundation | apache_traffic_server | 9.0.0 – 9.2.14 | — |
CVSS provenance
nvdv3.14.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
nvdv4.06.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Bugzilla
CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [epel-all]
bugzilla·2026-07-29·CVSS 4.9
CVE-2026-58156 [MEDIUM] CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [epel-all]
CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Bugzilla
CVE-2026-58156 Apache Traffic Server: URL and port parsing errors allow access-control bypass
bugzilla·2026-07-29·CVSS 4.9
CVE-2026-58156 [MEDIUM] CVE-2026-58156 Apache Traffic Server: URL and port parsing errors allow access-control bypass
CVE-2026-58156 Apache Traffic Server: URL and port parsing errors allow access-control bypass
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Bugzilla
CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [fedora-all]
bugzilla·2026-07-29·CVSS 4.9
CVE-2026-58156 [MEDIUM] CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [fedora-all]
CVE-2026-58156 trafficserver: URL and port parsing errors allow access-control bypass [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
2026-07-29
Published