Linux · 
Amazon Linux · Security advisory · March 30, 2026
Amazon Linux · Security advisory · March 30, 2026ALAS2023-2026-1528: Security update for 4 packages
ALAS2023-2026-1528, released March 30, 2026, fixes 4 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
4
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0056
47th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 3
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python3.13-tornado | amzn 2023 | 6.4.2-1.amzn2023.0.2 |
| python3.13-tornado-debuginfo | amzn 2023 | 6.4.2-1.amzn2023.0.2 |
| python3.13-tornado-debugsource | amzn 2023 | 6.4.2-1.amzn2023.0.2 |
| python3.13-tornado-doc | amzn 2023 | 6.4.2-1.amzn2023.0.2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-67725 | python-tornado: inefficient algorithm when parsing parameters for HTTP header values (bsc#1254905). | 7.5 | 0.0056 | None reported |
| High | CVE-2025-67726 | python-tornado: Denial of Service (DoS) via maliciously crafted HTTP request caused by the HTTPHeaders.add method (bsc#1254904). | 7.5 | 0.0054 | None reported |
| High | CVE-2026-31958 | python-tornado: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553). | 7.5 | 0.0042 | None reported |
| Routine | CVE-2025-67724 | python-tornado: missing validation of the supplied reason phrase (bsc#1254903). | 6.1 | 0.0024 | None reported |
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