Linux · 
Amazon Linux · Security advisory · September 28, 2026
Amazon Linux · Security advisory · September 28, 2026ALAS2023-2026-3127: Security update for 12 packages
ALAS2023-2026-3127, released September 28, 2026, fixes 6 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0078
56th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 4
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python3-unbound | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| python3-unbound-debuginfo | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-anchor | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-anchor-debuginfo | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-debuginfo | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-debugsource | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-devel | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-libs | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-libs-debuginfo | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-utils | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
| unbound-utils-debuginfo | amzn 2023 | 1.17.1-1.amzn2023.0.15 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-82717 | CNAME synthesis could lead to heap corruption | 9.8 | 0.0078 | None reported |
| High | CVE-2026-80225 | Possible degradation of service from continuous queries on the same TCP/DoT connection | 7.5 | 0.0048 | None reported |
| High | CVE-2026-85501 | Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC | 7.5 | 0.0048 | None reported |
| High | CVE-2026-81634 | Possible heap buffer overflow during DNSSEC canonicalization | 9.8 | 0.0048 | None reported |
| Routine | CVE-2026-82720 | Use-after-free in DoH stream cleanup code path | 5.9 | 0.0038 | None reported |
| Routine | CVE-2026-77955 | unbound: In NLnet Labs Unbound 1.13.2 up to and including 1.26.1, a vulnerability in ZONEMD configured zones (zonemd-check: ye... | 4.4 | 0.0017 | None reported |
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