libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.
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History
Wed, 21 Oct 2026 00:30:00 +0000
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| Weaknesses | CWE-459 | |
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Tue, 20 Oct 2026 17:30:00 +0000
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ssvc
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Tue, 20 Oct 2026 12:45:00 +0000
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| Description | libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated. | |
| Title | libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset | |
| First Time appeared |
Libexpat Project
Libexpat Project libexpat |
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| Weaknesses | CWE-909 | |
| CPEs | cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Libexpat Project
Libexpat Project libexpat |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-20T10:41:37.468Z
Updated: 2026-10-20T16:06:48.218Z
Reserved: 2026-10-20T01:07:45.687Z
Link: CVE-2026-113351
Updated: 2026-10-20T15:10:36.543Z
Status : Awaiting Analysis
Published: 2026-10-20T11:17:19.363
Modified: 2026-10-20T20:06:37.150
Link: CVE-2026-113351