# SUSE-SU-2026:3929-1: nodejs20 security update

SUSE-SU-2026:3929-1, released September 3, 2026, fixes 35 CVEs in nodejs20 (version 20.20.2-150600.3.21.1). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/suse-su-2026-3929-1
- Platform: Linux
- Released: Sep 3, 2026
- Priority: Urgent (Closes CVE-2026-40170, rated Critical)
- CVEs: 35, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/SUSE-SU-2026:3929-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [nodejs20](https://patchblox.com/security/data/product/linux/nodejs20.md) | sles 15.6 | 20.20.2-150600.3.21.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-40170](https://patchblox.com/security/data/cve/CVE-2026-40170.md) | Urgent | nodejs20: ngtcp2: qlog `parameters_set` stack buffer overflow (bsc#1262274). | 9.0 | 0.0078 |  |
| [CVE-2026-48933](https://patchblox.com/security/data/cve/CVE-2026-48933.md) | High | Node.js and 2 others: Integer Overflow | 8.1 | 0.0371 |  |
| [CVE-2026-48618](https://patchblox.com/security/data/cve/CVE-2026-48618.md) | High | Node.js and 2 others: Improper Handling of Unicode Encoding | 8.1 | 0.0314 |  |
| [CVE-2026-27135](https://patchblox.com/security/data/cve/CVE-2026-27135.md) | High | nghttp2 Denial of service: Assertion failure due to the missing state validation | 7.5 | 0.0082 |  |
| [CVE-2026-12151](https://patchblox.com/security/data/cve/CVE-2026-12151.md) | High | nodejs22: undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames (bsc#1268482). | 8.1 | 0.0079 |  |
| [CVE-2025-22150](https://patchblox.com/security/data/cve/CVE-2025-22150.md) | High | nodejs20: undici: predictable random values used when defining the boundary for a `multipart`/`form-data` | 7.7 | 0.0076 |  |
| [CVE-2026-48619](https://patchblox.com/security/data/cve/CVE-2026-48619.md) | High | Node.js and 2 others: Uncontrolled Resource Consumption | 8.1 | 0.0064 |  |
| [CVE-2026-56848](https://patchblox.com/security/data/cve/CVE-2026-56848.md) | High | Node.js and 2 others: Use After Free | 7.5 | 0.0057 |  |
| [CVE-2026-48937](https://patchblox.com/security/data/cve/CVE-2026-48937.md) | High | Node.js 22 and 2 others: Uncontrolled Resource Consumption | 7.5 | 0.0057 |  |
| [CVE-2026-56846](https://patchblox.com/security/data/cve/CVE-2026-56846.md) | High | Node.js and 2 others: Uncontrolled Resource Consumption | 7.5 | 0.0050 |  |
| [CVE-2026-42338](https://patchblox.com/security/data/cve/CVE-2026-42338.md) | High | nodejs20: ip-address: cross-site scripting via improper HTML escaping of untrusted input (bsc#1268097). | 8.1 | 0.0047 |  |
| [CVE-2026-69192](https://patchblox.com/security/data/cve/CVE-2026-69192.md) | High | node-ip-address: ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript | 8.6 | 0.0047 |  |
| [CVE-2026-22036](https://patchblox.com/security/data/cve/CVE-2026-22036.md) | High | nodejs22: Fixed unbounded decompression chain in HTTP response leading | 7.5 | 0.0046 |  |
| [CVE-2026-48615](https://patchblox.com/security/data/cve/CVE-2026-48615.md) | High | Node.js and 2 others: Privacy Violation | 8.1 | 0.0040 |  |
| [CVE-2026-54272](https://patchblox.com/security/data/cve/CVE-2026-54272.md) | High | node-ip-address: ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript | 8.6 | 0.0040 |  |
| [CVE-2026-9496](https://patchblox.com/security/data/cve/CVE-2026-9496.md) | High | nodejs20: pacote: excessive CPU consumption in `addGitSha` when processing a specially crafted `spec.rawSpec` | 7.5 | 0.0035 |  |
| [CVE-2026-48617](https://patchblox.com/security/data/cve/CVE-2026-48617.md) | High | Node.js 22 and 2 others: Improper Access Control - Generic | 8.2 | 0.0032 |  |
| [CVE-2026-48930](https://patchblox.com/security/data/cve/CVE-2026-48930.md) | High | Node.js and 2 others: Improper Access Control - Generic | 9.8 | 0.0032 |  |
| [CVE-2026-48934](https://patchblox.com/security/data/cve/CVE-2026-48934.md) | High | Node.js and 2 others: Improper Certificate Validation | 8.1 | 0.0026 |  |
| [CVE-2026-11525](https://patchblox.com/security/data/cve/CVE-2026-11525.md) | High | undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching | 8.1 | 0.0024 |  |
| [CVE-2026-6733](https://patchblox.com/security/data/cve/CVE-2026-6733.md) | High | nodejs20: undici: response queue poisoning on reused keep-alive sockets can lead to incorrect response delivery | 8.1 | 0.0022 |  |
| [CVE-2026-48928](https://patchblox.com/security/data/cve/CVE-2026-48928.md) | High | Node.js and 2 others: Improper Access Control - Generic | 8.1 | 0.0022 |  |
| [CVE-2026-48935](https://patchblox.com/security/data/cve/CVE-2026-48935.md) | High | Node.js and 2 others: Incorrect Default Permissions | 8.1 | 0.0019 |  |
| [CVE-2026-58043](https://patchblox.com/security/data/cve/CVE-2026-58043.md) | High | Node.js 22 and 2 others: Improper Access Control - Generic | 8.4 | 0.0014 |  |
| [CVE-2026-58042](https://patchblox.com/security/data/cve/CVE-2026-58042.md) | Routine | Node.js and 2 others: Uncontrolled Resource Consumption | 5.9 | 0.0037 |  |
| [CVE-2026-48931](https://patchblox.com/security/data/cve/CVE-2026-48931.md) | Routine | Node.js and 2 others: Time-of-check Time-of-use (TOCTOU) Race Condition | 3.7 | 0.0032 |  |
| [CVE-2026-16728](https://patchblox.com/security/data/cve/CVE-2026-16728.md) | Routine | node-undici: undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed... | 6.5 | 0.0029 |  |
| [CVE-2026-16729](https://patchblox.com/security/data/cve/CVE-2026-16729.md) | Routine | node-undici: undici's setCookie function does not fully sanitize cookie attributes | 6.5 | 0.0028 |  |
| [CVE-2026-58040](https://patchblox.com/security/data/cve/CVE-2026-58040.md) | Routine | Node.js and 2 others: Improper Validation of Certificate with Host Mismatch | 6.3 | 0.0028 |  |
| [CVE-2026-58044](https://patchblox.com/security/data/cve/CVE-2026-58044.md) | Routine | Node.js and 2 others: HTTP Request Smuggling | 4.8 | 0.0027 |  |
| [CVE-2026-9679](https://patchblox.com/security/data/cve/CVE-2026-9679.md) | Routine | nodejs20: undici: HTTP header injection via `Set-Cookie` percent-decoding (bsc#1268477). | 5.9 | 0.0026 |  |
| [CVE-2026-58045](https://patchblox.com/security/data/cve/CVE-2026-58045.md) | Routine | Node.js and 2 others: Uncontrolled Resource Consumption | 6.2 | 0.0017 |  |
| [CVE-2026-56847](https://patchblox.com/security/data/cve/CVE-2026-56847.md) | Routine | Node.js 22 and 2 others: Excessive Use of Unconditional Branching | 6.1 | 0.0016 |  |
| [CVE-2026-58039](https://patchblox.com/security/data/cve/CVE-2026-58039.md) | Routine | Node.js and 2 others: Improper Access Control - Generic | 4.4 | 0.0016 |  |
| [CVE-2026-56850](https://patchblox.com/security/data/cve/CVE-2026-56850.md) | Routine | Node.js 22 and 2 others: Improper Authentication - Generic | 4.4 | 0.0008 |  |

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Data as of 2026-11-11T01:43:54Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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