CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.

Updated under an hour ago (Oct 28, 2026, 5:10 PM ET)

What this means for you

This week: 3,207 CVEs published, 239 critical, and 5 newly confirmed exploited. Add your stack to see whether any of them hit you.

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This week's critical CVEs

Exploited in the last 30 days

Published in the last 7 days: 3,207; Show in the list
Critical, last 7 days: 239; Show in the list
Healthcare-tagged, last 7 days: 9; Show in the list
Known exploited (CISA KEV): 1,762; Show in the list

Showing CVEs that name the product libexpat_project:libexpat. Show all products

54 CVEs

Showing 1 to 10.

CVE	Severity	Title	Published
CVE-2026-76957	Medium 4.9	libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Assigned by mitre	Aug 20, 2026
CVE-2026-76956	Medium 5.9	In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of… Assigned by mitre	Aug 20, 2026
CVE-2026-66046	High 7.5	Expat Denial of Service via storeAtts() Quadratic Complexity Assigned by VulnCheck	Aug 18, 2026
CVE-2026-72522	Medium 6.2	libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions. Assigned by mitre	Aug 9, 2026
CVE-2026-56412	Medium 4.9	libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Assigned by mitre	Jun 21, 2026
CVE-2026-56411	Medium 6.9	xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations. Assigned by mitre	Jun 21, 2026
CVE-2026-56410	Medium 6.9	xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId. Assigned by mitre	Jun 21, 2026
CVE-2026-56409	Medium 6.5	xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used. Assigned by mitre	Jun 21, 2026
CVE-2026-56408	Medium 6.9	libexpat before 2.8.2 has an integer overflow in copyString. Assigned by mitre	Jun 21, 2026
CVE-2026-56407	Medium 6.9	libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen. Assigned by mitre	Jun 21, 2026

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.