Linux · Security advisory · August 27, 2026
RLSA-2026:50778: ruby security update
RLSA-2026:50778, released August 27, 2026, fixes 6 CVEs in ruby (version 0:3.3.12-14.el10_2). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0083
57th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 6
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| ruby | rocky 10 | 0:3.3.12-14.el10_2 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-47240 | Net::IMAP: Command Injection via non-synchronizing literal in "raw" argument | 7.3 | 0.0083 | None reported | |
| High | CVE-2026-27820 | zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption | 7.3 | 0.0056 | None reported | |
| High | CVE-2026-42257 | net-imap: Command Injection via "raw" arguments to multiple commands | 7.3 | 0.0043 | None reported | |
| High | CVE-2026-47241 | Net::IMAP: Denial of Service via incomplete raw argument validation | 7.3 | 0.0038 | None reported | |
| High | CVE-2026-42256 | net-imap: Denial of service via high iteration count for `SCRAM-*` authentication | 7.3 | 0.0030 | None reported | |
| High | CVE-2026-47242 | ruby: Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby | 7.3 | 0.0018 | None reported |
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