CVE-2026-41080Low· 2.9▾ Sunlitlibexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 16 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.4%
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
libexpat < 2.8.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-76956Medium· 5.9In 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.
CVE-2026-118370Medium· 5.9libexpat through 2.9.0 Integer Overflow in storeAtts via attIndex and nPrefixes
CVE-2026-117610Medium· 5.9libexpat through 2.9.0 NULL Pointer Dereference via External Entity Subparser
CVE-2026-115506High· 7.5libexpat through 2.9.0 Denial of Service via Billion Laughs Detection Delay
CVE-2026-113351Medium· 5.9libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset
CVE-2025-59375High· 7.5libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.