Bug 2477130 (CVE-2026-44289)

Summary: CVE-2026-44289 protobufjs: protobufjs: Denial of Service via uncontrolled recursion in protobuf decoding
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: abarbaro, abuckta, alizardo, amctagga, aoconnor, bbrownin, bniver, caswilli, cdrage, dkuc, dschmidt, erezende, flucifre, gmeno, groman, jchui, jhe, jkoehler, jlanda, jwong, kaycoth, kshier, ktsao, lchilton, lphiri, manissin, mbenjamin, mhackett, mstipich, nboldt, oaljalju, omaciel, orabin, psrna, rexwhite, rhel-process-autobot, rushinde, sfeifer, simaishi, smcdonal, sostapov, stcannon, sthirugn, teagle, ttakamiy, vereddy, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in protobufjs, a library that compiles protobuf definitions into JavaScript functions. A remote attacker could exploit this vulnerability by sending a specially crafted protobuf binary payload. This payload could cause uncontrolled recursion during the decoding of nested protobuf data, leading to the exhaustion of the JavaScript call stack. This ultimately results in a Denial of Service (DoS) for applications using the affected library.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2493393, 2493394, 2493395, 2493396, 2493397, 2493398    
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Description OSIDB Bzimport 2026-05-13 16:05:39 UTC 
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.