Bug 2443104 (CVE-2026-27141)

Summary: CVE-2026-27141 golang.org/x/net/http2: golang.org/x/net/http2: Denial of Service due to malformed HTTP/2 frames
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in golang.org/x/net/http2. A remote attacker can exploit this vulnerability by sending specially crafted HTTP/2 frames, which are data packets used in the HTTP/2 protocol. Due to a missing check for null values, processing these specific frames (types 0x0a through 0x0f) can cause the server to crash. This leads to a Denial of Service (DoS) condition, making the affected server unavailable to legitimate users.
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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: 2443470, 2443471    
Bug Blocks:    

Description OSIDB Bzimport 2026-02-26 20:09:34 UTC
Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic