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
This advisory covers four denial of service vulnerabilities affecting Node.js 20 on Red Hat Enterprise Linux 9. The vulnerabilities include CVE-2026-26996 and CVE-2026-27904 in the minimatch library, which allow denial of service via specially crafted glob patterns and catastrophic backtracking in glob expressions. CVE-2026-27135 affects nghttp2 and allows denial of service through malformed HTTP/2 frames after session termination. CVE-2026-21710 is a Node.js core vulnerability causing denial of service via a crafted HTTP __proto__ header. Red Hat has released updated Node.js 20 packages for RHEL 9 to address these issues.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Node.js applications running on affected Red Hat Enterprise Linux 9 systems. This may lead to application crashes or unresponsiveness, impacting availability. 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 that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:7896 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the official update.
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
This advisory covers four denial of service vulnerabilities affecting Node.js 20 on Red Hat Enterprise Linux 9. The vulnerabilities include CVE-2026-26996 and CVE-2026-27904 in the minimatch library, which allow denial of service via specially crafted glob patterns and catastrophic backtracking in glob expressions. CVE-2026-27135 affects nghttp2 and allows denial of service through malformed HTTP/2 frames after session termination. CVE-2026-21710 is a Node.js core vulnerability causing denial of service via a crafted HTTP __proto__ header. Red Hat has released updated Node.js 20 packages for RHEL 9 to address these issues.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Node.js applications running on affected Red Hat Enterprise Linux 9 systems. This may lead to application crashes or unresponsiveness, impacting availability. 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 that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:7896 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the official update.
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"]
- Cvss Version
- null
Threat ID: 6a160989e29bf47b50653364
Added to database: 05/26/2026, 20:58:49 UTC
Last enriched: 07/26/2026, 00:07:54 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 76
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