Apache Traffic Server: tsmemcache plugin exposes the shared proxy cache over the network with no authentication
Apache Traffic Server's experimental tsmemcache plugin allows unauthenticated network read, write, and deletion of the shared proxy cache. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.
CVE-2026-111811
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111811
Apache Traffic Server
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Traffic Server",
"versions": [
{
"status": "affected",
"version": "8.0.0",
"versionType": "semver",
"lessThanOrEqual": "8.1.11"
},
{
"status": "affected",
"version": "9.0.0",
"versionType": "semver",
"lessThanOrEqual": "9.2.15"
},
{
"status": "affected",
"version": "10.0.0",
"versionType": "semver",
"lessThanOrEqual": "10.1.4"
},
{
"status": "affected",
"version": "10.2.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111811
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #52694 · Revision 1
- Added to Heist Feed
- Publisher date