Bug 2562522 (CVE-2026-103995)

Summary: CVE-2026-103995 python: python: Misinterpretation of HTTP responses via invalid chunk parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Python. Its Hypertext Transfer Protocol (HTTP) response and chunk parsing logic incorrectly processes non-hexadecimal or negative integers. A remote server can exploit this by returning a specially crafted HTTP response to a client application. This flaw can cause the application to misinterpret the response content, leading to data integrity issues.
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Description OSIDB Bzimport 2026-10-28 00:54:45 UTC
Response body and chunk parsing would handle non-hex or negative integers incorrectly which could result in misinterpreting HTTP response contents.