Linux · 
Amazon Linux · Security advisory · September 28, 2026
Amazon Linux · Security advisory · September 28, 2026ALAS2023-2026-3107: Security update for 10 packages
ALAS2023-2026-3107, released September 28, 2026, fixes 9 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
9
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0048
41st percentile
Priority of the 9 CVEs
Patch now 0
Urgent 1
High 2
Routine 6
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| nodejs24 | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-debuginfo | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-debugsource | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-devel | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-docs | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-full-i18n | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-libs | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-libs-debuginfo | amzn 2023 | 1:24.21.0-1.amzn2023.0.1 |
| nodejs24-npm | amzn 2023 | 1:11.19.0-1.24.21.0.1.amzn2023.0.1 |
| v8-13.6-devel | amzn 2023 | 3:13.6.233.17-1.24.21.0.1.amzn2023.0.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-84961 | node-undici: undici's BalancedPool constructor passes its entire options object through an internal deep-clone that serializes and... | 9.1 | 0.0018 | None reported |
| High | CVE-2026-19534 | node-undici: undici's WebSocket client crashes the whole Node.js process during the opening handshake when a server responds with... | 7.8 | 0.0039 | None reported |
| High | CVE-2026-84933 | node-undici: undici's cache interceptor does not handle the Set-Cookie response header anywhere in its cache path, so it neither r... | 8.2 | 0.0030 | None reported |
| Routine | CVE-2026-18149 | undici vulnerable to Denial of Service via orphaned RetryHandler response body | 5.9 | 0.0048 | None reported |
| Routine | CVE-2026-84890 | node-undici: undici's decompress interceptor decompresses response bodies according to the untrusted Content-Encoding header | 5.9 | 0.0041 | None reported |
| Routine | CVE-2026-85024 | node-undici: undici bundles a WebSocket client whose permessage-deflate size-limit cleanup removes all listeners from the internal... | 5.9 | 0.0041 | None reported |
| Routine | CVE-2026-18540 | undici vulnerable to downstream response splitting via retry interceptor | 3.7 | 0.0031 | None reported |
| Routine | CVE-2026-84947 | node-undici: undici's dump interceptor reads and discards a response body up to a configurable maximum size | 5.3 | 0.0020 | None reported |
| Routine | CVE-2026-85008 | node-undici: undici's cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built b... | 5.3 | 0.0012 | None reported |
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