Medium6.3Apache Software Foundation

Medium [CVE-2026-58153] Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1

This medium-severity Apache Software Foundation advisory covers CVE-2026-58153 affecting Apache Traffic Server.

CVE-2026-58153 Published Jul 29, 2026Updated by vendor Aug 3, 2026

CVE-2026-58153

Affected products & platforms

Apache Software FoundationInfra & Gateways

Open vendor advisory

Android app · Google Play

Monitor future Apache Software Foundation CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1.

This issue affects Apache Traffic Server: 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 versions

10.0.0 through 10.1.3.
through 10.1.3

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

9.2.15
10.1.4

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
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-2026-58153 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-58153NVD 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.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.