Linux · 
Amazon Linux · Security advisory · April 27, 2026
Amazon Linux · Security advisory · April 27, 2026ALAS2023-2026-1600: Security update for 11 packages
ALAS2023-2026-1600, released April 27, 2026, fixes 3 CVEs across 11 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
8.1
Base score, 0 to 10
Highest EPSS
0.0072
54th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python3.13 | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-debug | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-debuginfo | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-debugsource | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-devel | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-freethreading | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-freethreading-debug | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-idle | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-libs | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-test | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
| python3.13-tkinter | amzn 2023 | 3.13.13-1.amzn2023.0.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-4224 | Stack overflow parsing XML with deeply nested DTD content models | 8.1 | 0.0072 | None reported |
| High | CVE-2026-3644 | Incomplete control character validation in http.cookies | 8.1 | 0.0051 | None reported |
| High | CVE-2026-2297 | SourcelessFileLoader does not use io.open_code() | 8.1 | 0.0022 | None reported |
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