7.5

CVE-2026-33750: juliangruber brace-expansion Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-33750DEBIAN-CVE-2026-33750CGA-228h-gvrc-5hhx
Published 27-03-2026Last modified 27-03-2026
Open JSON

Vulnerability summary

CVE-2026-33750 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in juliangruber brace-expansion. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.4% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.61%
0%100%
Low · +0.18 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-GFHP-QV7M-JQ4M

Timeline

  1. 27-03-2026
    PublishedVulnerability first disclosed.
  2. 27-03-2026
    Last modifiedVulnerability information updated.

Description

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13, a brace pattern with a zero step value (e.g., `{1..2..0}`) causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. Versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13 fix the issue. As a workaround, sanitize strings passed to `expand()` to ensure a step value of `0` is not used.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.18 pp

From 0.43% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard150 products
  • actions-runner< 2.333.1-r1
  • airflow-2All versions (No fix recorded)
  • airflow-core-2All versions (No fix recorded)
  • arangodb-3.11< 3.11.14.4-r16
  • arangodb-3.12< 3.12.7.2-r5
Wolfi47 products
  • argo-workflows-ui-3.7< 3.7.12-r2
  • argo-workflows-ui-4.0< 4.0.3-r2
  • eslint< 10.1.0-r1
  • jupyter-base-notebook< 7.6.1-r0 | < 7.6.3-r2
  • katib-earlystopping< 0.19.0-r31
Debian1 product
  • node-brace-expansionAll versions (No fix recorded) | < 2.0.3+~1.1.2-1
Juliangruber1 product
  • brace-expansion≥ 4.0.0, < 5.0.5 | < 1.1.13 | ≥ 2.0.0, < 2.0.3 | ≥ 3.0.0, < 3.0.2 | ≥ 5.0.0, < 5.0.5
Ubuntu1 product
  • node-brace-expansionAll versions (No fix recorded)

5 vendors · 200 products · Showing 200 of 201. Use Open JSON for the complete list.

References

16 links
Show all 16 references