CVE-2026-13149

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 72% 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, secondary
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.7Exploit: NoneExposed: 0

A fix is available — apply it.

brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.

CVSS v3
7.7
EG Score
7.7(medium)
EPSS
28.6%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 8, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit c7e33ec13ac1 (juliangruber/brace-expansion)

Fix landed in juliangruber/brace-expansion commit c7e33ec13ac1 — awaiting tagged release

https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754

Vendor Advisories for CVE-2026-13149(6)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdotnet8-0-main-8.0.128-1.1.hum12026-07-10redhat
redhatnodejs22-main-22.23.1-2.hum12026-07-03redhat
redhatnodejs24-main-24.18.0-0.2.hum12026-07-01redhat
redhatnodejs26-main-26.4.0-1.3.hum12026-06-30redhat

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.

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

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 10× in last 7d / 57× 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.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-19 02:28 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-17 02:20 UTCVendor advisory
  8. 2026-07-16 17:02 UTCEPSS rescore
  9. 2026-07-16 14:56 UTCVendor advisory
  10. 2026-07-16 03:18 UTCVendor advisory
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 15:55 UTCVendor advisory
  13. 2026-07-15 04:31 UTCVendor advisory
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-14 16:52 UTCVendor advisory
  16. 2026-07-14 05:29 UTCVendor advisory
  17. 2026-07-13 22:30 UTCEPSS rescore
  18. 2026-07-13 18:06 UTCVendor advisory
  19. 2026-07-13 06:42 UTCVendor advisory
  20. 2026-07-13 06:12 UTCEPSS rescore
  21. 2026-07-12 19:19 UTCVendor advisory
  22. 2026-07-12 07:56 UTCVendor advisory
  23. 2026-07-12 05:46 UTCEPSS rescore
  24. 2026-07-11 20:33 UTCVendor advisory
  25. 2026-07-11 09:09 UTCVendor advisory
Show 32 more
  1. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-10 21:46 UTCVendor advisory
  3. 2026-07-10 10:23 UTCVendor advisory
  4. 2026-07-09 22:59 UTCVendor advisory
  5. 2026-07-09 19:10 UTCEPSS rescore
  6. 2026-07-09 11:36 UTCVendor advisory
  7. 2026-07-09 00:09 UTCVendor advisory
  8. 2026-07-08 12:45 UTCVendor advisory
  9. 2026-07-08 01:17 UTCVendor advisory
  10. 2026-07-07 13:53 UTCVendor advisory
  11. 2026-07-07 13:46 UTCEPSS rescore
  12. 2026-07-07 02:29 UTCVendor advisory
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-06 15:05 UTCVendor advisory
  15. 2026-07-06 03:36 UTCVendor advisory
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-05 16:12 UTCVendor advisory
  18. 2026-07-05 04:47 UTCVendor advisory
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 17:13 UTCVendor advisory
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-04 05:49 UTCVendor advisory
  24. 2026-07-03 18:21 UTCVendor advisory
  25. 2026-07-03 06:58 UTCVendor advisory
  26. 2026-07-02 19:30 UTCVendor advisory
  27. 2026-07-02 08:06 UTCVendor advisory
  28. 2026-07-01 15:06 UTCEPSS rescore
  29. 2026-07-01 15:06 UTCEPSS rescore
  30. 2026-06-30 23:22 UTCEPSS rescore
  31. 2026-06-30 10:32 UTCEG score recompute
  32. 2026-06-30 10:31 UTCNVD updatefirst tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13149?
CVE-2026-13149 is a high vulnerability published on June 30, 2026. brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU…
When was CVE-2026-13149 disclosed?
CVE-2026-13149 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13149 actively exploited?
CVE-2026-13149 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13149?
CVE-2026-13149 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-13149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13149, 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

Explore the affected products and dependency analysis for CVE-2026-13149

Explore →

Is Your Infrastructure Affected by CVE-2026-13149?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs