ZL
Product
Zlib
by Ruby-lang · last CVE Apr 16, 2026
1
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 1High 0Medium 0Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-27820
9.8
1%
Apr 16
zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption
Affected: before 3.0.1; 3.1.0 before 3.1.2; 3.2.0 before 3.2.3
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