Bug 2477701 (CVE-2026-8521)

Summary: CVE-2026-8521 chromium-browser: chromium-browser: Use after free in Tab Groups
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: aadhikar, anpicker, anthomas, bdettelb, bparees, brasmith, bsmejkal, cochase, dbosanac, derez, doconnor, dranck, dschmidt, eborisov, ehelms, erezende, ggainey, gotiwari, hasun, jachapma, jcantril, jfula, jgrulich, jhorak, jkoehler, jlanda, jowilson, jreimann, juwatts, kshier, lball, lphiri, mdessi, mhulan, mreynolds, mrizzi, mvyas, ngough, nmoumoul, nyancey, ometelka, osousa, pcattana, pcreech, progier, ptisnovs, rchan, rhel-process-autobot, rjohnson, rojacob, simaishi, smallamp, smcdonal, snegrini, spichugi, stcannon, syedriko, tbordaz, teagle, tmalecek, tpopela, vashirov, veshanka, watson-tool-maintainers, xdharmai, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
An use after free flaw was found in the Tab Groups component of the Chromium browser. Upstream bug(s): https://code.google.com/p/chromium/issues/detail?id=504106200
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2477796, 2477797    
Bug Blocks:    

Description OSIDB Bzimport 2026-05-14 21:05:11 UTC
Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)