Advisory severityHigh8.7Apache Software Foundation Updated

High [CVE-2026-111810] Apache Traffic Server 9.2.15, 10.1.4 and 10.2.0 write one unthrottled diagnostic log line for every internal @ header they strip, so a request carrying many such headers makes the proxy write far more log data than the request contains

This high-severity Apache Software Foundation advisory covers CVE-2026-111810 affecting Apache Traffic Server.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-111810 Source published Oct 22, 2026Source updated Oct 21, 2026

VulniPulse record published Oct 22, 2026Record updated Oct 22, 2026

CVE-2026-111810

Affected products & platforms

Apache Software FoundationInfra & Gateways

Open source advisory

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Summary

Apache Traffic Server 9.2.15, 10.1.4 and 10.2.0 write one unthrottled diagnostic log line for every internal @ header they strip, so a request carrying many such headers makes the proxy write far more log data than the request contains.

This issue affects Apache Traffic Server: 9.2.15, 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.

Affected versions

9.2.15
10.1.4
10.2.0

Official advisory · high-confidence parse· fetched 11 hours ago·verify at source

Fixed versions

9.2.16
10.1.5
10.2.1

Official advisory · high-confidence parse· fetched 11 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.

Official advisory · high-confidence parse· fetched 11 hours ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-111810 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-111810NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
The Apache Software Foundation's official security page: how ASF CVEs are published and where each project's advisories live.
Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

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