Search/CVE-2026-76956
● CVE — Medium

CVE-2026-76956

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 service via crafted XML content.

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CVSS v3.1
5.9 MEDIUM
EPSS
0.29%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Intelligence Reports1
1 intelligence report available

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EPSS Trend
Aug 21, 2026 → Sep 10, 2026
▲ 0.02pp
0.26% → 0.29% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Connections
2 relationships
Timeline
disclosure → media coverage
Aug 20, 2026
Disclosure — published as a CVE record. · last revised by NVD Sep 8, 2026