Advisory severityHigh8.8Apache Software Foundation Updated

High [CVE-2026-111804] Apache Traffic Server's experimental wasm plugin has a use-after-free in its transaction-close handler and forwards unvalidated guest-supplied metric IDs to the internal stats API

This high-severity Apache Software Foundation advisory covers CVE-2026-111804 affecting Apache Traffic Server.

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

CVE-2026-111804 Source published Oct 22, 2026Source updated Oct 21, 2026

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

CVE-2026-111804

Affected products & platforms

Apache Software FoundationInfra & Gateways

Open source advisory

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Summary

Apache Traffic Server's experimental wasm plugin has a use-after-free in its transaction-close handler and forwards unvalidated guest-supplied metric IDs to the internal stats API.

This issue affects Apache Traffic Server: from 10.0.0 through 10.1.4, 10.2.0.

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

Affected versions

10.0.0 through 10.1.4

Official advisory · high-confidence parse· fetched 12 hours ago·verify at source

Fixed versions

10.1.5
10.2.1

Official advisory · high-confidence parse· fetched 12 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

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

Official advisory · high-confidence parse· fetched 12 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-2026-111804 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-111804NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
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