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CVE

CVE-2026-21710

RHSA-2026:7670: nodejs:24 security update (Important)
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CVE

CVE-2026-21710

RHSA-2026:7670: nodejs:24 security update (Important)

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

Security Fix(es):

  • nodejs: Nodejs denial of service (CVE-2026-21637)
  • minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)
  • undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)
  • undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)
  • undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)
  • undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)
  • undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)
  • undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)
  • nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)
  • Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)
  • Node.js: Node.js: Denial of Service due to crafted HTTP proto header (CVE-2026-21710)
  • Node.js: Node.js: Information disclosure due to fs.realpathSync.native() bypassing filesystem read restrictions (CVE-2026-21715)
  • nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)
  • Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)
  • Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)
  • Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)
  • nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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Fix Without Upgrading
Detect compatible fix
Apply safe remediation
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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
-
C
H
U
-

Related Resources

No items found.

References

https://access.redhat.com/errata/RHSA-2026:7670, https://access.redhat.com/security/cve/CVE-2026-1525, https://access.redhat.com/security/cve/CVE-2026-1526, https://access.redhat.com/security/cve/CVE-2026-1527, https://access.redhat.com/security/cve/CVE-2026-1528, https://access.redhat.com/security/cve/CVE-2026-21637, https://access.redhat.com/security/cve/CVE-2026-21710, https://access.redhat.com/security/cve/CVE-2026-21711, https://access.redhat.com/security/cve/CVE-2026-21712, https://access.redhat.com/security/cve/CVE-2026-21713, https://access.redhat.com/security/cve/CVE-2026-21714, https://access.redhat.com/security/cve/CVE-2026-21715, https://access.redhat.com/security/cve/CVE-2026-21716, https://access.redhat.com/security/cve/CVE-2026-21717, https://access.redhat.com/security/cve/CVE-2026-2229, https://access.redhat.com/security/cve/CVE-2026-2581, https://access.redhat.com/security/cve/CVE-2026-26996, https://access.redhat.com/security/cve/CVE-2026-27135

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00044%
EPSS Percentile
0.13847%
Introduced Version
0
Fix Available
1:11.11.0-1.24.14.1.2.module+el8.10.0+24190+49a46c75,3:13.6.233.17-1.24.14.1.2.module+el8.10.0+24190+49a46c75,1:24.14.1-2.module+el8.10.0+24190+49a46c75,0:3.0.3-1.module+el8.10.0+24190+49a46c75,0:2021.06-6.module+el8.10.0+24190+49a46c75,1:20.20.2-1.module+el8.10.0+24197+1602b452,0:3.0.1-1.module+el8.10.0+23521+490ebfde,0:2021.06-6.module+el8.10.0+24197+1602b452,1:10.8.2-1.20.20.2.1.module+el8.10.0+24197+1602b452,0:2021.06-6.module+el8.10.0+24148+847b6786,1:22.22.2-1.module+el8.10.0+24148+847b6786,1:10.9.7-1.22.22.2.1.module+el8.10.0+24148+847b6786,3:12.4.254.21-1.22.22.2.1.module+el8.10.0+24148+847b6786,0:3.0.1-1.module+el8.10.0+24148+847b6786,1:24.14.1-2.module+el9.7.0+24166+51c9666b,0:2021.06-6.module+el9.7.0+24166+51c9666b,3:13.6.233.17-1.24.14.1.2.module+el9.7.0+24166+51c9666b,0:3.0.3-3.module+el9.7.0+24166+51c9666b,1:11.11.0-1.24.14.1.2.module+el9.7.0+24166+51c9666b,1:10.8.2-1.20.20.2.1.module+el9.7.0+24193+41b7b572,1:20.20.2-1.module+el9.7.0+24193+41b7b572,0:3.0.1-1.module+el9.7.0+24193+41b7b572,0:2021.06-6.module+el9.7.0+24193+41b7b572,1:22.22.2-1.module+el9.7.0+24157+8ddb2461,1:10.9.7-1.22.22.2.1.module+el9.7.0+24157+8ddb2461,0:3.0.1-1.module+el9.7.0+24157+8ddb2461,0:2021.06-6.module+el9.7.0+24157+8ddb2461,3:12.4.254.21-1.22.22.2.1.module+el9.7.0+24157+8ddb2461,18.20.4+dfsg-1~deb12u2,20.19.2+dfsg-1+deb13u2,24.14.1-r0,22.22.2-r0,1:20.20.2-1.module+el9.7.0+90874+6d84790f,0:3.0.1-1.module+el9.7.0+90874+6d84790f,0:2021.06-6.module+el9.7.0+90874+6d84790f,1:10.8.2-1.20.20.2.1.module+el9.7.0+90874+6d84790f,1:24.14.1-2.module+el9.7.0+90866+5a953a4c,0:3.0.3-3.module+el9.7.0+90866+5a953a4c,0:2021.06-6.module+el9.7.0+90866+5a953a4c,1:11.11.0-1.24.14.1.2.module+el9.7.0+90866+5a953a4c,3:13.6.233.17-1.24.14.1.2.module+el9.7.0+90866+5a953a4c,1:22.22.2-1.module+el9.7.0+90867+2ede48fe,0:3.0.1-1.module+el9.7.0+90867+2ede48fe,0:2021.06-6.module+el9.7.0+90867+2ede48fe,1:10.9.7-1.22.22.2.1.module+el9.7.0+90867+2ede48fe,3:12.4.254.21-1.22.22.2.1.module+el9.7.0+90867+2ede48fe,1:20.20.2-1.module+el8.10.0+90878+0d41f8c0,0:3.0.1-1.module+el8.10.0+90743+b61054a8,0:2021.06-5.module+el8.10.0+90878+0d41f8c0,1:10.8.2-1.20.20.2.1.module+el8.10.0+90878+0d41f8c0,1:24.14.1-2.module+el8.10.0+90873+35652ecc,0:3.0.3-1.module+el8.10.0+90873+35652ecc,0:2021.06-6.module+el8.10.0+90873+35652ecc,1:11.11.0-1.24.14.1.2.module+el8.10.0+90873+35652ecc,3:13.6.233.17-1.24.14.1.2.module+el8.10.0+90873+35652ecc,1:22.22.2-1.module+el8.10.0+90865+d647ef3a,0:3.0.1-1.module+el8.10.0+90865+d647ef3a,0:2021.06-4.module+el8.10.0+90865+d647ef3a,1:10.9.7-1.22.22.2.1.module+el8.10.0+90865+d647ef3a,3:12.4.254.21-1.22.22.2.1.module+el8.10.0+90865+d647ef3a,1:22.22.2-1.amzn2023.0.1,3:12.4.254.21-1.22.22.2.1.amzn2023.0.1,1:10.9.7-1.22.22.2.1.amzn2023.0.1,1:20.20.2-1.amzn2023.0.1,3:11.3.244.8-1.20.20.2.1.amzn2023.0.1,1:10.8.2-1.20.20.2.1.amzn2023.0.1,1:24.14.1-1.amzn2023.0.1,3:13.6.233.17-1.24.14.1.1.amzn2023.0.1,1:11.11.0-1.24.14.1.1.amzn2023.0.1,22.22.3-r0

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