Red Hat Security Advisory: nodejs:20 security update
Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fix(es): * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996) * minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions (CVE-2026-27904) * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135) * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710) 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.
AI Analysis
Technical Summary
Red Hat Product Security released an important security advisory (RHSA-2026:7896) for the nodejs:20 module in Red Hat Enterprise Linux 9. The advisory addresses four denial of service vulnerabilities: CVE-2026-26996 and CVE-2026-27904 in minimatch caused by specially crafted glob patterns and catastrophic backtracking; CVE-2026-27135 in nghttp2 due to malformed HTTP/2 frames after session termination; and CVE-2026-21710 in Node.js core caused by a crafted HTTP __proto__ header. These vulnerabilities can cause denial of service conditions but no CVSS scores are provided in the advisory. The update rebases Node.js 20 to version 20.20.2, which includes fixes for these issues.
Potential Impact
The vulnerabilities can lead to denial of service conditions in applications using affected Node.js 20 versions on Red Hat Enterprise Linux 9. This may cause application crashes or unavailability when processing maliciously crafted inputs such as glob patterns or HTTP headers. No information about exploitation in the wild is reported.
Mitigation Recommendations
An official security update is available from Red Hat that rebases Node.js 20 to version 20.20.2, which includes fixes for all listed vulnerabilities. Users should apply this update promptly to remediate the denial of service issues. For detailed update instructions, refer to the Red Hat advisory at https://access.redhat.com/articles/11258. No additional mitigation actions are indicated by the vendor.
Red Hat Security Advisory: nodejs:20 security update
Description
Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fix(es): * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996) * minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions (CVE-2026-27904) * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135) * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security released an important security advisory (RHSA-2026:7896) for the nodejs:20 module in Red Hat Enterprise Linux 9. The advisory addresses four denial of service vulnerabilities: CVE-2026-26996 and CVE-2026-27904 in minimatch caused by specially crafted glob patterns and catastrophic backtracking; CVE-2026-27135 in nghttp2 due to malformed HTTP/2 frames after session termination; and CVE-2026-21710 in Node.js core caused by a crafted HTTP __proto__ header. These vulnerabilities can cause denial of service conditions but no CVSS scores are provided in the advisory. The update rebases Node.js 20 to version 20.20.2, which includes fixes for these issues.
Potential Impact
The vulnerabilities can lead to denial of service conditions in applications using affected Node.js 20 versions on Red Hat Enterprise Linux 9. This may cause application crashes or unavailability when processing maliciously crafted inputs such as glob patterns or HTTP headers. No information about exploitation in the wild is reported.
Mitigation Recommendations
An official security update is available from Red Hat that rebases Node.js 20 to version 20.20.2, which includes fixes for all listed vulnerabilities. Users should apply this update promptly to remediate the denial of service issues. For detailed update instructions, refer to the Red Hat advisory at https://access.redhat.com/articles/11258. No additional mitigation actions are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:7896
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-26996","CVE-2026-27135","CVE-2026-27904"]
- State
- PUBLISHED
Threat ID: 6a160989e29bf47b50653364
Added to database: 05/26/2026, 20:58:49 UTC
Last enriched: 08/10/2026, 20:28:13 UTC
Last updated: 09/15/2026, 01:45:46 UTC
Views: 105
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