Bug 2494902

Summary: CVE-2026-25680 docker-buildx: golang.org/x/net/html: Denial of Service due to excessive HTML parsing [fedora-all]
Product: [Fedora] Fedora Reporter: jkelly <jkelly>
Component: docker-buildxAssignee: Maxwell G <maxwell>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: bradley.g.smith, go-sig, maxwell
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["f6764755-9650-40f5-8d06-b9b18511264e"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-07-29 20:57:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2480760    

Description jkelly 2026-06-30 13:52:45 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.

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.
Comment 1 Brad Smith 2026-07-29 20:57:57 UTC 
buildx [ v0.36]
❯ go mod why -m golang.org/x/net/html
# golang.org/x/net/html
(main module does not need module golang.org/x/net/html)