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Fencer Vulns
high 7.5

CVE-2020-7753 json

Regular Expression Denial of Service (ReDoS)

published 2020-10-27 6 y ago modified 2026-06-17 4 mo ago also GHSA-w5p7-h5w8-2hfq , EUVD-2021-1210

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

All versions of package trim are vulnerable to Regular Expression Denial of Service (ReDoS) via trim().

Patch / fix

  • npm trim 0.0.3
  • grafana SLE Module for Package Hub 15 SP5, openSUSE Leap 15.5 9.5.8-150200.3.53.2
  • grafana Manager Client Tools 15 9.5.8-150000.1.60.2
  • spacecmd openSUSE Leap 15.5, Manager Client Tools 15 4.3.26-150000.3.113.1
  • mgr-daemon Manager Client Tools 15 4.3.8-150000.1.44.1
  • spacewalk-client-tools Manager Client Tools 15 4.3.18-150000.3.86.2
  • prometheus-postgres_exporter openSUSE Leap 15.5, Manager Client Tools 15 0.10.1-150000.1.17.1
  • uyuni-proxy-systemd-services Manager Client Tools for SLE Micro 5, Manager Client Tools 15 4.3.10-150000.1.15.1
  • golang-github-prometheus-prometheus Manager Client Tools 15 2.45.0-150000.3.53.1

suse advisories SUSE-RU-2024:0511-1SUSE-SU-2024:0487-1SUSE-SU-2024:0486-1SUSE-SU-2024:0196-1SUSE-SU-2024:0191-1SUSE-SU-2023:2579-1

  • grafana openSUSE Tumbleweed 9.3.6-1.1

opensuse advisories openSUSE-SU-2024:12723-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7753 updated cvss 7.5

nodejs-trim: Regular Expression Denial of Service (ReDoS) in trim function

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8
    affected: no fix available
  • Red Hat Cluster Observability Operator 1.5.0 cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9 1782840519
    fixed: vendor fix RHSA-2026:34342
  • Red Hat Cluster Observability Operator 1.5.0 cluster-observability-operator/perses-rhel9 1782839109, cluster-observability-operator/thanos-rhel9 1782840280, cluster-observability-operator/korrel8r-rhel9 1782839157, cluster-observability-operator/prometheus-rhel9 1782840780, cluster-observability-operator/alertmanager-rhel9 1782840761, cluster-observability-operator/perses-rhel9-operator 1782839191, +18 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.78% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • snyk.io https://snyk.io/vuln/SNYK-JS-TRIM-1017038 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1022132 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm trim
<0.0.3
0.0.3

Affected products

  • n/a trim

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.