Linux · Amazon Linux · Security advisory · June 22, 2026

ALAS2023-2026-1877: Security update for 4 packages

ALAS2023-2026-1877, released June 22, 2026, fixes 3 CVEs across 4 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
8.8
Base score, 0 to 10
Highest EPSS
0.0059
48th percentile

Priority of the 3 CVEs

Patch now 0 Urgent 0 High 2 Routine 1

Fixed package versions

ProductReleaseFixed in
golang-github-burntsushi-tomlamzn 20231.5.0-1.amzn2023.0.2
golang-github-burntsushi-toml-debuginfoamzn 20231.5.0-1.amzn2023.0.2
golang-github-burntsushi-toml-debugsourceamzn 20231.5.0-1.amzn2023.0.2
golang-github-burntsushi-toml-develamzn 20231.5.0-1.amzn2023.0.2

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-27145 Inefficient candidate hostname parsing in crypto/x5098.2 0.0059 None reported
High CVE-2026-42504 Quadratic complexity in WordDecoder.DecodeHeader in mime8.8 0.0056 None reported
Routine CVE-2026-42507 Arbitrary inputs are included in errors without any escaping in net/textproto5.3 0.0037 None reported
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