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ALSA-2026:47057 — Important: nodejs:24 security update

Affected: AlmaLinux:9: nodejs, AlmaLinux:9: nodejs-devel, AlmaLinux:9: nodejs-docs, AlmaLinux:9: nodejs-full-i18n, AlmaLinux:9: nodejs-libs, AlmaLinux:9: nodejs-nodemon, AlmaLinux:9: nodejs-packaging, AlmaLinux:9: nodejs-packaging-bundler, AlmaLinux:9: npm, AlmaLinux:9: v8-13.6-devel

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

Security Fix(es):

* brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity (CVE-2026-13149) * tar: Node-tar: Denial of Service via malformed tar archive header (CVE-2026-59874) * tar: node-tar: Denial of Service via crafted gzip bomb (CVE-2026-59873)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2026-09562

certfr-2026-avi-0958 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-0958

Withdrawn: CLEANSTART-2026-JR64129 — Security fixes in renovate 44.32.4-r1

Withdrawn by the publisher.

Affected: CleanStart: renovate

Package renovate version 44.32.4-r1 fixes 27 vulnerabilities: CVE-2026-59873, CVE-2026-59874, CVE-2026-59871, CVE-2026-59875, ghsa-r292-9mhp-454m...

EUVD-2026-334021

fkie_cve-2026-59874

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.

GHSA-8x88-c5mf-7j5w — node-tar: Negative tar entry size causes infinite loop in archive replace

Affected: npm: tar

### Summary

A checksum-valid tar archive with a negative base-256 encoded entry size can make `tar.replace()` loop forever while scanning the existing archive. Applications that update attacker-controlled tar archives can have a worker process pinned indefinitely, causing denial of service.

### Details

The public `tar.replace()` API scans the existing archive before appending replacement entries. During this scan, it parses each tar header and advances the archive position by the parsed entry size rounded to a 512-byte block boundary.

Tar supports base-256 encoded numeric fields. A crafted header can encode the entry size as `-512` while still carrying a valid checksum. The replace scan accepts that parsed negative size and uses it in the position-advance calculation.

For a size of `-512`, the computed body skip is `-512`. The scan then adds the normal 512-byte header step, resulting in no net progress. The scanner repeatedly parses the same header forever and never reaches the append step.

This is reachable through the supported package API when the existing archive file is attacker controlled. It does not rely on extraction, dependency behavior, or an uncaught exception.

### PoC

Save as `poc.mjs` in a project with the vulnerable package installed and run:

```bash node poc.mjs ```

```js import fs from 'node:fs' import os from 'node:os' import path from 'node:path' import { spawnSync } from 'node:child_process'

const oct = (b, n, off, len) => b.write(n.toString(…

msrc_CVE-2026-59874 — node-tar: Negative tar entry size causes infinite loop in archive replace

msrc_CVE-2026-59874

NCSC-2026-0325 — Kwetsbaarheden verholpen in Atlassian producten

NCSC-2026-0325

RHSA-2026:42815 — Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.2 security update

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity fast-uri: fast-uri: Security policy bypass due to improper Unicode hostname canonicalization protobufjs: protobufjs: Denial of Service via uncontrolled recursion in protobuf decoding protobufjs: protobufjs: Denial of Service via crafted schema protobufjs: protobufjs: Arbitrary Code Execution via prototype pollution protobufjs: protobufjs: Data integrity impact due to prototype pollution protobufjs: protobufjs: Denial of Service via crafted JSON descriptors linkify-it: linkify-it: Denial of Service via algorithmic complexity vulnerability dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution tar: node-tar: Denial of Service via crafted gzip bomb tar: Node-tar: Denial of Service via malformed tar archive header

RHSA-2026:47057 — Red Hat Security Advisory: nodejs:24 security update

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity tar: node-tar: Denial of Service via crafted gzip bomb tar: Node-tar: Denial of Service via malformed tar archive header

RLSA-2026:47057 — Important: nodejs:24 security update

Affected: Rocky Linux:9: nodejs, Rocky Linux:9: nodejs-nodemon, Rocky Linux:9: nodejs-packaging

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

Security Fix(es):

* brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity (CVE-2026-13149)

* tar: Node-tar: Denial of Service via malformed tar archive header (CVE-2026-59874)

* tar: node-tar: Denial of Service via crafted gzip bomb (CVE-2026-59873)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2026-59874

Affected: Ubuntu:Pro:14.04:LTS: node-tar, Ubuntu:Pro:16.04:LTS: node-tar, Ubuntu:18.04:LTS: node-tar, Ubuntu:Pro:20.04:LTS: node-tar, Ubuntu:22.04:LTS: node-tar, Ubuntu:24.04:LTS: node-tar, Ubuntu:25.10: node-tar, Ubuntu:26.04:LTS: node-tar

WID-SEC-W-2026-2452 — Red Hat Ansible Automation Platform (node-tar, linkify-it, protobufjs, brace-expansion, fast-uri, DOMPurify): Mehrere S…

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Ansible Automation Platform ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, einen Denial-of-Service-Zustand auszulösen oder beliebigen Code auszuführen.