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Thu, 20 Aug 2026 19:30:00 +0000
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ssvc
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Thu, 20 Aug 2026 17:45:00 +0000
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| Description | Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046. | |
| Title | Expat Out-of-Bounds Read via dtdCopy | |
| Weaknesses | CWE-125 | |
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cvssV3_1
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Subscriptions
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-20T18:49:21.993Z
Reserved: 2026-08-19T14:53:58.575Z
Link: CVE-2026-76641
Updated: 2026-08-20T18:48:55.119Z
Status : Received
Published: 2026-08-20T18:16:51.887
Modified: 2026-08-20T19:17:04.430
Link: CVE-2026-76641
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OpenCVE Enrichment
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