CVE-2026-33750

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Source
https://cve.org/CVERecord?id=CVE-2026-33750
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33750.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-33750
Aliases
Downstream
Related
Published
2026-03-27T14:04:52.297Z
Modified
2026-06-18T03:56:02.847213504Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
brace-expansion: Zero-step sequence causes process hang and memory exhaustion
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33750.json",
    "cwe_ids": [
        "CWE-400"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/juliangruber/brace-expansion

Affected ranges

Type
GIT
Repo
https://github.com/juliangruber/brace-expansion
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6c353caf23beb9644f858eb3fe38d43a68b82898
Fixed
87939017c6cb6be56b98c6fa2059b073315cd534
Introduced
0b6a022491103b806770bc037654744bef3e63be
Fixed
73b5459d2ab973c984d01324769d306f66440c7e
Introduced
b01a637b0578a7c59acc7d8386f11f8d0710b512
Fixed
67ff947eb70ec5d57961f9e09b205487498fc4ed
Fixed
311ac0d54994158c0a384e286a7d6cbb17ee8ed5
Fixed
7fd684f89fdde3549563d0a6522226a9189472a2
Fixed
b9cacd9e55e7a1fa588fe4b7bb1159d52f1d902a
Database specific 
{
    "cpe": "cpe:2.3:a:juliangruber:brace-expansion:*:*:*:*:*:node.js:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.1.13"
        },
        {
            "introduced": "5.0.0"
        },
        {
            "fixed": "5.0.5"
        },
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.0.3"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.0.2"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.1.10
v1.1.11
v1.1.12
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.1.8
v1.1.9
v2.*
v2.0.0
v2.0.1
v2.0.2
v3.*
v3.0.0
v3.0.1
v4.*
v4.0.0
v4.0.1
v5.*
v5.0.2
v5.0.3
v5.0.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33750.json"