Linux · 
Debian · Security advisory · April 16, 2026
Debian · Security advisory · April 16, 2026DEBIAN-CVE-2026-27820: ruby3.3 security update
DEBIAN-CVE-2026-27820, released April 16, 2026, fixes 1 CVE in ruby3.3 (version 3.3.13-0+deb13u1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
1
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0056
46th percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| ruby3.3 | Debian 13.5 (trixie) | 3.3.13-0+deb13u1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-27820 | zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption | 9.8 | 0.0056 | None reported |
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