CVE-2026-102276

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-29. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — Patch released this week

Also known asEUVD-2026-88550 (ENISA EUVD) · GHSA-6j4f-fj2g-mc7p (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace patterns can exhaust the native stack in parseCommaParts because parseCommaParts recursively processes the remainder once per brace group and uses push.apply to pass every element of a very large comma-part array as a function argument. Patterns containing many comma-separated brace groups trigger the recursive path, while the large array triggers the argument-array path without deep recursion. These paths cause recursive and argument-array native stack exhaustion before max or maxLength can limit output, potentially terminating the Node.js process in a process-terminating denial of service. This issue is fixed in versions 1.1.19, 2.1.5, 3.0.7, and 5.0.10.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 28, 2026

Last Modified

September 30, 2026

Advisory Details (5)

Auto-updated Sep 28, 2026
Patch available. Sources: github, github_commit.
GitHub commit

commit 6735c94873ca (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit 6735c94873ca — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/6735c94873ca570bcdd6a0690033bdd3126379d3
GitHub commit

commit 5171e681c092 (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit 5171e681c092 — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/5171e681c0922b7ae8bfaf9a331e309107be6edc
GitHub commit

commit 316359e6019c (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit 316359e6019c — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/316359e6019c39b3254c8ba8e25dc586a480652c
GitHub commit

commit 0bcbfc0a5928 (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit 0bcbfc0a5928 — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/0bcbfc0a5928c3073d48f42999d1ce4fc1c42fbc
GitHub advisoryMentions a patch (unverified)

DoS via uncontrolled recursion in parseCommaParts causing stack exhaustion · Advisory · juliangruber/brace-expansion · GitHub

https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-6j4f-fj2g-mc7p

Patch Availability(15)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatnodejs:24-9080020261027142403.rhel92026-10-29redhat
redhatnodejs:24-8100020261027151919.6d8804032026-10-29redhat
redhatsatellite/iop-remediations-rhel9:17930922532026-10-29redhat
redhatsatellite/iop-remediations-rhel9:17930651382026-10-29redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17930018272026-10-29redhat
redhatdiscovery/discovery-ui-rhel9:17926039242026-10-28redhat
redhatdiscovery/discovery-ui-rhel9:17932185302026-10-28redhat
redhatnodejs26-main-11.20.0-1.26.11.1.0.4.hum12026-10-19redhat
redhatnodejs26-main-26.10.0-0.3.hum12026-09-30redhat
redhatnodejs24-main-24.21.0-1.2.hum12026-09-30redhat
redhatnodejs22-main-22.23.3-2.3.2.2.hum12026-09-30redhat
npmbrace-expansion @ 5.0.10 (fixes >= 4.0.0, < 5.0.10)—ghsa
npmbrace-expansion @ 3.0.7 (fixes >= 3.0.0, < 3.0.7)—ghsa
npmbrace-expansion @ 2.1.5 (fixes >= 2.0.0, < 2.1.5)—ghsa
npmbrace-expansion @ 1.1.19 (fixes < 1.1.19)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-brace-expansion2.0.1+~1.1.0-1 ... 2.1.7+~1.1.2-1 (8 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-brace-expansion2.0.1+~1.1.0-2 ... 2.1.7+~1.1.2-1 (6 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
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
  • every version up to 2.1.7+~1.1.2-1: fixed in 2.1.7+~1.1.2-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
brace-expansion—
  • 4.0.0 up to 5.0.10: fixed in 5.0.10
  • 3.0.0 up to 3.0.7: fixed in 3.0.7
  • 2.0.0 up to 2.1.5: fixed in 2.1.5
  • every version up to 1.1.19: fixed in 1.1.19
—

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 68× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-11-01 08:00 UTCGHSA enrichmentGHSA-6j4f-fj2g-mc7p · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-11-01 08:00 UTCEG score recompute
  4. 2026-10-31 19:43 UTCEG score recompute
  5. 2026-10-31 19:43 UTCVendor advisory
  6. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  7. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-10-25 14:56 UTCEG score recompute
  14. 2026-10-24 19:48 UTCEG score recompute
  15. 2026-10-24 19:48 UTCVendor advisory
  16. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  17. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  18. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  19. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  20. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  21. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  22. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  23. 2026-10-18 05:10 UTCEG score recompute
  24. 2026-10-17 19:51 UTCEG score recompute
  25. 2026-10-17 19:51 UTCVendor advisory
Show 60 more
  1. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  2. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  3. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  4. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  5. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  6. 2026-10-12 16:41 UTCEG score recompute
  7. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  8. 2026-10-11 20:16 UTCEG score recompute
  9. 2026-10-11 18:28 UTCEG score recompute
  10. 2026-10-11 16:19 UTCVendor advisory
  11. 2026-10-11 15:02 UTCEG score recompute
  12. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-10-11 03:18 UTCEG score recompute
  14. 2026-10-11 03:18 UTCVendor advisory
  15. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  16. 2026-10-10 14:07 UTCVendor advisory
  17. 2026-10-10 01:08 UTCEG score recompute
  18. 2026-10-10 01:08 UTCVendor advisory
  19. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  20. 2026-10-09 12:09 UTCVendor advisory
  21. 2026-10-08 23:08 UTCEG score recompute
  22. 2026-10-08 23:08 UTCVendor advisory
  23. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  24. 2026-10-08 10:09 UTCEG score recompute
  25. 2026-10-08 10:09 UTCVendor advisory
  26. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  27. 2026-10-07 21:10 UTCVendor advisory
  28. 2026-10-07 08:10 UTCVendor advisory
  29. 2026-10-06 19:11 UTCEG score recompute
  30. 2026-10-06 19:11 UTCVendor advisory
  31. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  32. 2026-10-06 06:12 UTCEG score recompute
  33. 2026-10-06 06:12 UTCVendor advisory
  34. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  35. 2026-10-05 16:59 UTCVendor advisory
  36. 2026-10-05 04:00 UTCEG score recompute
  37. 2026-10-05 04:00 UTCVendor advisory
  38. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  39. 2026-10-04 15:00 UTCVendor advisory
  40. 2026-10-04 02:00 UTCEG score recompute
  41. 2026-10-04 02:00 UTCVendor advisory
  42. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  43. 2026-10-03 13:02 UTCVendor advisory
  44. 2026-10-03 00:00 UTCEG score recompute
  45. 2026-10-03 00:00 UTCVendor advisory
  46. 2026-10-02 11:01 UTCVendor advisory
  47. 2026-10-01 22:03 UTCEG score recompute
  48. 2026-10-01 22:03 UTCVendor advisory
  49. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  50. 2026-10-01 09:00 UTCVendor advisory
  51. 2026-09-30 16:17 UTCEG score recompute
  52. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  53. 2026-09-30 03:18 UTCEG score recompute
  54. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  55. 2026-09-29 14:18 UTCEG score recompute
  56. 2026-09-29 13:49 UTCEG score recompute
  57. 2026-09-29 10:18 UTCEG score recompute
  58. 2026-09-28 21:18 UTCEG score recompute
  59. 2026-09-28 20:58 UTCEG score recomputeFirst assessed: 7.5 HIGH
  60. 2026-09-28 20:57 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-102276?
CVE-2026-102276 is a high-severity vulnerability; its CVE record was published on September 28, 2026. The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace patterns can exhaust the native stack in parseCommaParts because parseCommaParts recursively processes the remainder once per brace group and uses…
When was the CVE record for CVE-2026-102276 published?
The CVE record for CVE-2026-102276 was published on September 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 30, 2026; the record at its source may have been updated since.
Is CVE-2026-102276 actively exploited?
CVE-2026-102276 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102276?
CVE-2026-102276 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-102276?
A fix for CVE-2026-102276 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-102276 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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