CVE-2026-93687: braces through 3.0.3 Stack Overflow via Deeply Nested Patterns
Vulnerability summary
CVE-2026-93687 is a high (CVSS 8.7) Uncontrolled Recursion vulnerability in micromatch braces. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 55.2% of scored vulnerabilities.
Severe, CVSS 8.7 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 18-09-2026PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
braces through 3.0.3 contains a stack overflow vulnerability in the recursive AST walkers that lack depth guards. Attackers can supply deeply nested brace patterns under the character limit to exhaust the call stack and terminate the Node.js process with an uncaught RangeError.
CVSS metrics
11 scores · 7 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · WolfiEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- OSV · NpmEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- NVDNIST8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · NpmEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.76%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.74% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard90 products
- airflow-2All versions (No fix recorded) | < 2.11.2-r26
- airflow-core-2All versions (No fix recorded)
- arangodb-3.11All versions (No fix recorded) | < 3.11.14.6-r2
- arangodb-3.12All versions (No fix recorded) | < 3.12.12.1-r10
- argo-workflows-ui-3.7All versions (No fix recorded) | < 3.7.18-r13
Wolfi17 products
- argo-workflows-ui-4.0All versions (No fix recorded) | < 4.0.15-r0
- jupyter-base-notebook< 7.6.3-r2
- kubeflow-pipelines-frontendAll versions (No fix recorded) | < 2.17.2-r16
- langfuse-3-workerAll versions (No fix recorded) | < 3.225.12-r5
- nextcloud-server-33All versions (No fix recorded) | < 33.0.10-r0
Debian1 product
- node-bracesAll versions (No fix recorded)
Mageia1 product
- nodejs-braces< 3.0.3-1.mga10
Micromatch1 product
- braces≤ 3.0.3
Npm1 product
- braces≤ 3.0.3
Opensuse1 product
- terragrunt&distro=openSUSE Tumbleweed< 1.2.1-1.1
Ubuntu1 product
- node-bracesAll versions (No fix recorded)
8 vendors · 113 products
References
16 links- www.vulncheck.com/advisories/braces-through-3.0.3-stack-overflow-via-deeply-nested-patternsThird Party AdvisoryREPORTAdvisoryWEB