Bug 2508381 - CVE-2026-33930 trafficserver: Apache Traffic Server: Denial of Service via over-long Host header [fedora-all]
Summary: CVE-2026-33930 trafficserver: Apache Traffic Server: Denial of Service via ov...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: trafficserver
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
Assignee: Jered Floyd
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["7b766c96-d07f-41f5-8c45-4...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-29 12:26 UTC by Oleg Sushchenko
Modified: 2026-08-06 17:16 UTC (History)
1 user (show)

Fixed In Version: trafficserver-10.1.4-1.fc44
Clone Of:
Environment:
Last Closed: 2026-08-06 17:16:01 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Oleg Sushchenko 2026-07-29 12:26:20 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Apache Traffic Server copies the client Host header into a fixed-size stack buffer without a bound during redirect handling, so an over-long Host header overflows the stack when redirect following is enabled.

This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, 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.

Comment 1 Fedora Update System 2026-07-29 23:05:29 UTC
FEDORA-2026-5bec7441bb (trafficserver-10.1.4-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-5bec7441bb

Comment 2 Fedora Update System 2026-08-06 17:16:01 UTC
FEDORA-2026-5bec7441bb (trafficserver-10.1.4-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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