Bug 2552390 (CVE-2026-110656)

Summary: CVE-2026-110656 miniupnpc: miniupnpc: Denial of Service via out-of-bounds read in XML parser
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in miniupnpc. An adjacent attacker can cause a Denial of Service (DoS) due to an out-of-bounds read vulnerability in the XML parser's namespace handling. A malicious or spoofed Universal Plug and Play (UPnP) gateway on the local network can exploit this flaw by sending a crafted device description or response containing an element name that ends with a colon, triggering an out-of-bounds memory read that crashes the client application.
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Bug Depends On: 2553635, 2553636    
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Description OSIDB Bzimport 2026-10-14 15:35:16 UTC 
miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseelt function's namespace-prefix handling that skips an end-of-buffer check after advancing past ':'. A malicious or spoofed UPnP gateway on the local network can send a device description or SOAP reply ending in ':' within an element name to crash the client.