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.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
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| Apache Software Foundation | Apache Traffic Server | unaffected |
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| Vendor | Product | Confidence | Versions | ||||||||||||||||||||
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| Apache | Apache Traffic Server | 100% |
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| Apache | Traffic Server | 100% |
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| Apache Software Foundation | Apache Traffic Server | 100% |
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No solution or workaround provided in the CVE record.
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Tracking
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Thu, 22 Oct 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache apache Traffic Server Apache traffic Server Apache Software Foundation Apache Software Foundation apache Traffic Server |
|
| Vendors & Products |
Apache
Apache apache Traffic Server Apache traffic Server Apache Software Foundation Apache Software Foundation apache Traffic Server |
Wed, 21 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a malformed padded HTTP/2 DATA frame. 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. | |
| Title | Apache Traffic Server: HTTP/2 DATA frame padding underflow lets a client trigger backend worker-pool exhaustion | |
| Weaknesses | CWE-191 | |
| References |
| |
| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-10-21T19:11:59.516Z
Reserved: 2026-10-16T20:19:38.638Z
Link: CVE-2026-111808
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-10-21T20:17:22.427
Modified: 2026-10-22T16:56:52.840
Link: CVE-2026-111808
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-10-22T10:30:04Z