Vulnerability · Published May 24, 2021 · Assigned by mitre

CVE-2021-33502

High 7.5

In plain English

A high-severity security flaw in the nodejs package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.7%top 22.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8nodejs1:14.18.2-2.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8nodejs1:14.18.2-2.module_el8.5.0+254+b4526b16ALSA-2022:0350
AlmaLinux:8nodejs1:16.13.1-3.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs1:16.13.1-3.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:9nodejs1:16.16.0-1.el9_0ALSA-2022:6595
AlmaLinux:8nodejs-devel1:16.13.1-3.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:8nodejs-devel1:14.18.2-2.module_el8.5.0+254+b4526b16ALSA-2022:0350
AlmaLinux:8nodejs-devel1:16.13.1-3.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs-devel1:14.18.2-2.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8nodejs-docs1:16.13.1-3.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs-docs1:14.18.2-2.module_el8.5.0+254+b4526b16ALSA-2022:0350
AlmaLinux:8nodejs-docs1:14.18.2-2.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8nodejs-docs1:16.13.1-3.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:9nodejs-docs1:16.16.0-1.el9_0ALSA-2022:6595
AlmaLinux:8nodejs-full-i18n1:14.18.2-2.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8nodejs-full-i18n1:14.18.2-2.module_el8.5.0+254+b4526b16ALSA-2022:0350
AlmaLinux:8nodejs-full-i18n1:16.13.1-3.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs-full-i18n1:16.13.1-3.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:9nodejs-full-i18n1:16.16.0-1.el9_0ALSA-2022:6595
AlmaLinux:9nodejs-libs1:16.16.0-1.el9_0ALSA-2022:6595
AlmaLinux:8nodejs-nodemon2.0.15-1.module_el8.5.0+2605+45d748afALSA-2022:0350
AlmaLinux:8nodejs-nodemon2.0.15-1.module_el8.6.0+2904+f21ad6f4ALSA-2021:5171
AlmaLinux:8nodejs-nodemon2.0.15-1.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs-nodemon2.0.15-1.module_el8.6.0+2904+f21ad6f4ALSA-2022:0350
AlmaLinux:8nodejs-nodemon2.0.15-1.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:9nodejs-nodemon2.0.19-1.el9_0ALSA-2022:6595
AlmaLinux:8nodejs-packaging23-3.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8nodejs-packaging25-1.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8nodejs-packaging23-3.module_el8.4.0+2522+3bd42762ALSA-2022:0350
AlmaLinux:8nodejs-packaging25-1.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:8npm1:8.1.2-1.16.13.1.3.module_el8.5.0+246+05401605ALSA-2021:5171
AlmaLinux:8npm1:8.1.2-1.16.13.1.3.module_el8.5.0+2605+45d748afALSA-2021:5171
AlmaLinux:8npm1:6.14.15-1.14.18.2.2.module_el8.5.0+2618+8d46dafdALSA-2022:0350
AlmaLinux:8npm1:6.14.15-1.14.18.2.2.module_el8.5.0+254+b4526b16ALSA-2022:0350
AlmaLinux:9npm1:8.11.0-1.16.16.0.1.el9_0ALSA-2022:6595
Debian:12node-got11.8.1+~cs53.13.17-3DEBIAN-CVE-2021-33502
Debian:13node-got11.8.1+~cs53.13.17-3DEBIAN-CVE-2021-33502
Debian:14node-got11.8.1+~cs53.13.17-3DEBIAN-CVE-2021-33502
Rocky Linux:8nodejs1:14.18.2-2.module+el8.5.0+733+de4fee6cRLSA-2022:0350
Rocky Linux:8nodejs1:16.13.1-3.module+el8.5.0+721+4c107270RLSA-2021:5171
Rocky Linux:8nodejs-nodemon0:2.0.15-1.module+el8.5.0+721+4c107270RLSA-2022:0350
Rocky Linux:8nodejs-nodemon0:2.0.15-1.module+el8.5.0+721+4c107270RLSA-2021:5171
Rocky Linux:9nodejs-nodemon0:2.0.19-1.el9_0RLSA-2022:6595
Rocky Linux:8nodejs-packaging0:23-3.module+el8.5.0+733+de4fee6cRLSA-2022:0350
Rocky Linux:8nodejs-packaging0:25-1.module+el8.6.0+1046+80feca58RLSA-2021:5171
Rocky Linux:8nodejs-packaging0:25-1.module+el8.5.0+702+221f14e6RLSA-2021:5171
Rocky Linux:8nodejs-packaging0:23-3.module+el8.7.0+1071+4bdda2a8RLSA-2022:0350
Rocky Linux:8nodejs-packaging0:23-3.module+el8.3.0+100+234774f7RLSA-2022:0350
Ubuntu:22.04:LTSnode-gotno fix listedUBUNTU-CVE-2021-33502
Ubuntu:24.04:LTSnode-gotno fix listedUBUNTU-CVE-2021-33502
Ubuntu:25.10node-gotno fix listedUBUNTU-CVE-2021-33502
Ubuntu:26.04:LTSnode-gotno fix listedUBUNTU-CVE-2021-33502
Ubuntu:26.10node-gotno fix listedUBUNTU-CVE-2021-33502
Ubuntu:22.04:LTSnode-yarnpkgno fix listedUBUNTU-CVE-2021-33502
Ubuntu:24.04:LTSnode-yarnpkgno fix listedUBUNTU-CVE-2021-33502
Ubuntu:25.10node-yarnpkgno fix listedUBUNTU-CVE-2021-33502
Ubuntu:26.04:LTSnode-yarnpkgno fix listedUBUNTU-CVE-2021-33502
Ubuntu:26.10node-yarnpkgno fix listedUBUNTU-CVE-2021-33502
npmnormalize-url4.5.1GHSA-px4h-xg32-q955
npmnormalize-url5.3.1GHSA-px4h-xg32-q955
npmnormalize-url6.0.1GHSA-px4h-xg32-q955

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References