CVE-2026-33750

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

March 27, 2026

Last Modified

June 17, 2026

Advisory Details (10)

Auto-updated Aug 2, 2026
Patch available. Sources: github_commit, github_pr, github.
github Patch Available

Zero-step sequence causes process hang and memory exhaustion · Advisory · juliangruber/brace-expansion · GitHub

https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-f886-m6hf-6m8v
github_pr

Backport fix for GHSA-f886-m6hf-6m8v to v3

Fix merged in juliangruber/brace-expansion PR #97 on 2026-03-27 — awaiting tagged release

https://github.com/juliangruber/brace-expansion/pull/97
github_pr Patch Available

Backport fix for GHSA-f886-m6hf-6m8v to v2

Patch available: juliangruber/brace-expansion v2.1.1 (PR #96 merged 2026-03-27)

https://github.com/juliangruber/brace-expansion/pull/96
github_pr Patch Available

Backport fix for GHSA-f886-m6hf-6m8v to v1

Patch available: juliangruber/brace-expansion v1.1.15 (PR #95 merged 2026-03-27)

https://github.com/juliangruber/brace-expansion/pull/95
generic

Update affected versions for GHSA-f886-m6hf-6m8v (Patches backported to v1, v2, v3) · Issue #98 · juliangruber/brace-expansion · GitHub

https://github.com/juliangruber/brace-expansion/issues/98
github_commit

commit b9cacd9e55e7 (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit b9cacd9e55e7 — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/b9cacd9e55e7a1fa588fe4b7bb1159d52f1d902a
github_commit Patch Available

commit 7fd684f89fdd (juliangruber/brace-expansion)

Patch available: juliangruber/brace-expansion v1.1.15 (contains commit 7fd684f89fdd)

https://github.com/juliangruber/brace-expansion/commit/7fd684f89fdde3549563d0a6522226a9189472a2
github_commit Patch Available

commit 311ac0d54994 (juliangruber/brace-expansion)

Patch available: juliangruber/brace-expansion v2.1.1 (contains commit 311ac0d54994)

https://github.com/juliangruber/brace-expansion/commit/311ac0d54994158c0a384e286a7d6cbb17ee8ed5
generic

brace-expansion/src/index.ts at daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a · juliangruber/brace-expansion · GitHub

https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L184
generic

brace-expansion/src/index.ts at daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a · juliangruber/brace-expansion · GitHub

https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L107-L113

Vendor Advisories for CVE-2026-33750(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
node-brace-expansion2.0.0-1 ... 2.0.3+~1.1.2-3 (8 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-brace-expansion2.0.1+~1.1.0-1 ... 2.1.4+~1.1.2-1 (7 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-brace-expansion2.0.1+~1.1.0-2, 2.0.3+~1.1.2-1, 2.0.3+~1.1.2-2, 2.0.3+~1.1.2-3, 2.1.4+~1.1.2-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-brace-expansion2.0.1+~1.1.0-22.0.3+~1.1.2-1—
npm(1)
PackageVulnerable rangeFixed inDependents
brace-expansion—1.1.13—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 192 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 19:30 UTCEPSS rescore
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 03:11 UTCEPSS rescore
  7. 2026-09-13 16:47 UTCEPSS rescore
  8. 2026-09-12 15:01 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 09:37 UTCEPSS rescore
  11. 2026-09-10 09:34 UTCEPSS rescore
  12. 2026-09-08 22:00 UTCEPSS rescore
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-02 14:11 UTCEPSS rescore
  17. 2026-09-02 13:14 UTCOSV refresh
  18. 2026-09-01 13:53 UTCEPSS rescore
  19. 2026-09-01 04:39 UTCEPSS rescore
  20. 2026-09-01 04:39 UTCEPSS rescore
  21. 2026-08-30 19:17 UTCEPSS rescore
  22. 2026-08-30 01:22 UTCEPSS rescore
  23. 2026-08-28 21:41 UTCEPSS rescore
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-26 14:46 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 14:17 UTCEPSS rescore
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-20 22:55 UTCEPSS rescore
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 10:00 UTCEG score recompute
  12. 2026-08-16 10:00 UTCVendor advisory
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-14 19:13 UTCVendor advisory
  16. 2026-08-14 06:19 UTCEG score recompute
  17. 2026-08-14 06:19 UTCVendor advisory
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-12 20:37 UTCEG score recompute
  20. 2026-08-12 20:37 UTCVendor advisory
  21. 2026-08-12 13:50 UTCEPSS rescore
  22. 2026-08-11 20:45 UTCEG score recompute
  23. 2026-08-11 20:45 UTCVendor advisory
  24. 2026-08-11 03:48 UTCEG score recompute
  25. 2026-08-11 03:48 UTCVendor advisory
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-09 17:32 UTCEG score recompute
  28. 2026-08-09 17:32 UTCVendor advisory
  29. 2026-08-09 13:46 UTCEPSS rescore
  30. 2026-08-09 05:52 UTCEG score recompute
  31. 2026-08-09 05:52 UTCVendor advisory
  32. 2026-08-08 16:37 UTCEPSS rescore
  33. 2026-08-08 03:55 UTCEG score recompute
  34. 2026-08-08 03:55 UTCVendor advisory
  35. 2026-08-07 16:19 UTCVendor advisory
  36. 2026-08-06 18:41 UTCEG score recompute
  37. 2026-08-06 18:41 UTCVendor advisory
  38. 2026-08-06 13:46 UTCEPSS rescore
  39. 2026-08-06 00:47 UTCEG score recompute
  40. 2026-08-06 00:47 UTCVendor advisory
  41. 2026-08-05 19:17 UTCEPSS rescore
  42. 2026-08-04 15:10 UTCEPSS rescore
  43. 2026-08-04 10:38 UTCEPSS rescore
  44. 2026-08-03 23:09 UTCEG score recompute
  45. 2026-08-03 10:36 UTCEPSS rescore
  46. 2026-08-03 03:00 UTCVendor advisory
  47. 2026-08-02 15:12 UTCEG score recompute▲ 1.00
  48. 2026-08-02 15:12 UTCVendor advisory
  49. 2026-08-02 02:27 UTCEPSS rescore
  50. 2026-08-01 04:16 UTCEPSS rescore
  51. 2026-07-30 16:28 UTCEPSS rescore
  52. 2026-07-30 01:30 UTCEPSS rescore
  53. 2026-07-27 14:13 UTCEPSS rescore
  54. 2026-07-26 14:54 UTCEPSS rescore
  55. 2026-07-26 14:54 UTCEPSS rescore
  56. 2026-07-25 14:18 UTCEPSS rescore
  57. 2026-07-25 14:18 UTCEPSS rescore
  58. 2026-07-24 14:17 UTCEPSS rescore
  59. 2026-07-24 14:17 UTCEPSS rescore
  60. 2026-07-23 14:18 UTCEPSS rescore
  61. 2026-07-23 14:18 UTCEPSS rescore
  62. 2026-07-23 03:09 UTCEG score recompute
  63. 2026-07-22 14:08 UTCEPSS rescore
  64. 2026-07-21 15:24 UTCEPSS rescore
  65. 2026-07-20 17:08 UTCEPSS rescore
  66. 2026-07-19 14:31 UTCEPSS rescore
  67. 2026-07-19 02:29 UTCEPSS rescore
  68. 2026-07-18 10:04 UTCEPSS rescore
  69. 2026-07-17 05:24 UTCOSV refresh
  70. 2026-07-16 17:03 UTCEPSS rescore
  71. 2026-07-15 16:57 UTCEPSS rescore
  72. 2026-07-15 16:57 UTCEPSS rescore
  73. 2026-07-15 02:00 UTCEPSS rescore
  74. 2026-07-13 22:30 UTCEPSS rescore
  75. 2026-07-13 06:13 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-33750?
CVE-2026-33750 is a high vulnerability published on March 27, 2026. 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…
When was CVE-2026-33750 disclosed?
CVE-2026-33750 was first published in the National Vulnerability Database on March 27, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33750 actively exploited?
CVE-2026-33750 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.2% of all scored CVEs.
What is the CVSS score of CVE-2026-33750?
CVE-2026-33750 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-33750?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33750, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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