Bug 2443010 (CVE-2026-3260)

Summary: CVE-2026-3260 undertow: Undertow: Denial of Service due to premature multipart/form-data parsing in GET requests
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: abrianik, anujha, aschwart, asoldano, aszczucz, bbaranow, bmaxwell, boliveir, brian.stansberry, bstansbe, darran.lofthouse, dhanak, dlofthou, dosoudil, drichtar, drosa, fjuma, fmariani, ggrzybek, gmalinko, ibek, istudens, ivassile, iweiss, janstey, jraez, jrokos, jwon, kverlaen, mcarlett, mnovotny, mosmerov, mposolda, msvehla, nwallace, parichar, pberan, pdelbell, pesilva, pjindal, pmackay, rhel-process-autobot, rmartinc, rstancel, rstepani, sausingh, security-response-team, smaestri, ssilvert, sthorger, tasato, tcunning, thjenkin, tom.jenkinson, vdosoudi, vmuzikar, watson-tool-maintainers, yfang
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2026-02-26 14:27:15 UTC 
A vulnerability was identified in Undertow (as used in Wildfly) where the server prematurely parses and stores multipart/form-data content to the disk when receiving an HTTP GET request, provided the underlying application (e.g., JSF) invokes parameter-parsing methods like getParameterMap().