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CVE-2026-56132: CWE-821 Incorrect Synchronization in libexpat project libexpatCVE-2026-56132 0 A heap-based buffer overflow vulnerability exists in libexpat versions before 2.8.2 due to incorrect synchronization in the doProlog function of xmlparse.c. This occurs because the scaffold backing array reallocation is mishandled when data structures are shared across parsers. The vulnerability is identified as CWE-821 and has a CVSS 3.1 base score of 6.9 (medium severity). Join the discussion | CVE Database V5 | 06/19/2026, 03:00:42 UTC Added: 06/19/2026, 04:35:47 UTC |
CVE-2026-56131: CWE-416 Use After Free in libexpat project libexpatCVE-2026-56131 0 CVE-2026-56131 is a use-after-free vulnerability in libexpat before version 2.8.2. The issue arises because the library lacks proper handler call depth tracking when XML_ResumeParser is called from within handlers during policy violations. This can lead to memory corruption and potential instability. The vulnerability has a medium severity rating with a CVSS score of 4.9. Join the discussion | CVE Database V5 | 06/19/2026, 02:56:36 UTC Added: 06/19/2026, 04:35:47 UTC |
CVE-2026-50219: CWE-416 Use After Free in libexpat project libexpatCVE-2026-50219 0 libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur, Join the discussion | CVE Database V5 | 06/04/2026, 04:20:32 UTC Added: 06/04/2026, 05:33:34 UTC |
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