CVE-2026-58157
published 2026-07-29CVE-2026-58157: Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections. This issue affects Apache Traffic Server: from…
PriorityP258high8.7CVSS 3.1
AVNACHPRNUINSCCHIHAN
EPSS
0.27%
20.0th percentile
Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections.
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.
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 – 8.1.9 | — |
| apache_software_foundation | apache_traffic_server | 9.0.0 – 9.2.14 | — |
CVSS provenance
nvdv3.18.7HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
nvdv4.06.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/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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VulDB
Apache Traffic Server up to 8.1.9/9.2.14/10.1.3 information disclosure (Nessus ID 333156 / WID-SEC-2026-2561)
vuldb·2026-08-07·CVSS 8.7
CVE-2026-58157 [HIGH] Apache Traffic Server up to 8.1.9/9.2.14/10.1.3 information disclosure (Nessus ID 333156 / WID-SEC-2026-2561)
A vulnerability, which was classified as problematic, has been found in Apache Traffic Server up to 8.1.9/9.2.14/10.1.3. The impacted element is an unknown function. Performing a manipulation results in information disclosure.
This vulnerability is known as CVE-2026-58157. Remote exploitation of the attack is possible. No exploit is available.
It is advisable to upgrade the affected component.
GHSA
Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections.
ghsa_unreviewed·2026-07-29
CVE-2026-58157 [MEDIUM] CWE-200 Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections.
Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections.
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [fedora-all]
bugzilla·2026-07-29·CVSS 8.7
CVE-2026-58157 [HIGH] CVE-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [fedora-all]
CVE-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [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 can reuse server sessions and tunnels improperly, exposing data across client connections.
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-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [epel-all]
bugzilla·2026-07-29·CVSS 8.7
CVE-2026-58157 [HIGH] CVE-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [epel-all]
CVE-2026-58157 trafficserver: improper server-session reuse can expose data across client connections [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 can reuse server sessions and tunnels improperly, exposing data across client connections.
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-2026-58157 Apache Traffic Server: improper server-session reuse can expose data across client connections
bugzilla·2026-07-29·CVSS 8.7
CVE-2026-58157 [HIGH] CVE-2026-58157 Apache Traffic Server: improper server-session reuse can expose data across client connections
CVE-2026-58157 Apache Traffic Server: improper server-session reuse can expose data across client connections
Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections.
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