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
The advisory covers four denial of service vulnerabilities: CVE-2026-26996 and CVE-2026-27904 in the minimatch library related to denial of service via crafted glob patterns and catastrophic backtracking; CVE-2026-27135 in nghttp2 causing denial of service via malformed HTTP/2 frames after session termination; and CVE-2026-21710 in Node.js itself, where a denial of service can be triggered by a crafted HTTP __proto__ header. These vulnerabilities affect Node.js 20 versions from 20.0.0 up to but excluding 20.20.2 on Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat has released updated packages to fix these issues as detailed in advisory RHSA-2026:9711.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Node.js applications running on affected Red Hat Enterprise Linux systems. This may lead to application crashes or unavailability, impacting service reliability. There is no indication of remote code execution or data compromise from the advisory. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated Node.js 20 packages for Red Hat Enterprise Linux 9.4 Extended Update Support that address these vulnerabilities. Users should apply the updates as described in Red Hat advisory RHSA-2026:9711 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigation steps are specified or required beyond applying the official patches.
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
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers four denial of service vulnerabilities: CVE-2026-26996 and CVE-2026-27904 in the minimatch library related to denial of service via crafted glob patterns and catastrophic backtracking; CVE-2026-27135 in nghttp2 causing denial of service via malformed HTTP/2 frames after session termination; and CVE-2026-21710 in Node.js itself, where a denial of service can be triggered by a crafted HTTP __proto__ header. These vulnerabilities affect Node.js 20 versions from 20.0.0 up to but excluding 20.20.2 on Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat has released updated packages to fix these issues as detailed in advisory RHSA-2026:9711.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Node.js applications running on affected Red Hat Enterprise Linux systems. This may lead to application crashes or unavailability, impacting service reliability. There is no indication of remote code execution or data compromise from the advisory. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated Node.js 20 packages for Red Hat Enterprise Linux 9.4 Extended Update Support that address these vulnerabilities. Users should apply the updates as described in Red Hat advisory RHSA-2026:9711 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigation steps are specified or required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:9711
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-26996","CVE-2026-27135","CVE-2026-27904"]
Threat ID: 6a160989e29bf47b50653351
Added to database: 05/26/2026, 20:58:49 UTC
Last enriched: 08/10/2026, 20:27:32 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 133
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